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diff --git a/Master/texmf-dist/doc/latex/revtex/auguide/auguide4-2.tex b/Master/texmf-dist/doc/latex/revtex/auguide/auguide4-2.tex new file mode 100644 index 00000000000..170669f611b --- /dev/null +++ b/Master/texmf-dist/doc/latex/revtex/auguide/auguide4-2.tex @@ -0,0 +1,1799 @@ +%% ****** Start of file authguide.tex ****** % +%% +%% This file is part of the APS files in the REVTeX 4 distribution. +%% Version 4.2b of REVTeX, December 2018 +%% +%% Copyright (c) 2019 The American Physical Society. +%% +%% See the REVTeX 4.2 README file for restrictions and more information. +%% +\listfiles +\documentclass[% +,aps% + ,twocolumn% + ,secnumarabic% +,amssymb, amsmath,nobibnotes, aps, prl, floatfix]{revtex4-2} +\usepackage{docs}% +\usepackage{bm}% +\usepackage[colorlinks=true,linkcolor=blue]{hyperref}% +%\nofiles +\expandafter\ifx\csname package@font\endcsname\relax\else + \expandafter\expandafter + \expandafter\usepackage + \expandafter\expandafter + \expandafter{\csname package@font\endcsname}% +\fi + +\begin{document} + +\title{\revtex~4.2 Author's Guide}% +\author{American Physical Society}% +\email{revtex@aps.org} +\affiliation{1 Research Road, Ridge, NY 11961} +\date{December 2018}% +\maketitle +\tableofcontents +\clearpage +\section{Introduction} + +This is the author's guide to \revtex~4.2, the preferred submission +format for all APS and AIP journals. This guide is intended to be a concise +introduction to \revtex~4.2. The documentation has been separated out +into smaller units to make it easier to locate essential +information. + +The following documentation is also part of the \revtex~4.2 +distribution. Updated versions of these will be maintained at +the \revtex~4.2 homepage located at \url{http://journals.aps.org/revtex/}. +\begin{itemize} +\item \textit{APS Author Guide for \revtex~4.2} +\item \textit{Author's Guide to AIP Substyles for \revtex~4.2} +\item \textit{\revtex~4.2 Command and Options Summary} +\end{itemize} +This guide assumes a working \revtex~4.2 +installation. Please see the installation instructions included with the +distribution. +\subsection{Changes in \revtex~4.2} +The \revtex\ system for \LaTeX\ began its development in 1986 and has gone through three major revisions since then. \revtex~4 was released in August, 2001. Since that time, many user requests for new features were received. These requests were taken care of in the \revtex~4.1, which was released in August, 2010. \revtex~4.2 is the current release. + +\revtex~4.2 incorporates the following changes: + +\begin{itemize} +\item \textbf{Added support for additional APS journals, \textit{Physical Review X}, \textit{Physical Review Accelerators and Beams}, \textit{Physical Review Applied}, \textit{Physical Review Fluids}, \textit{Physical Review Materials}, and \textit{Physical Review Education Research}.} There are new options \texttt{prx}, \texttt{prab}, \texttt{prapplied}, \texttt{prfluids}, and \texttt{prmaterials}, and \texttt{prper}. + +\item \textbf{Added a unified \texttt{physrev} option for \textit{Physical Review} journal style (the \textit{Phys. Rev.} journals have no or few variations).} + +\item \textbf{The \texttt{prb} option now conforms with \textit{Physical Review B}'s updated style that uses the same non-superscripted citations as other APS journals}. + +\item \textbf{Added support for additional AIP journals, \textit{AIP Advances}, \textit{Applied Physics Letters Materials}, and \textit{Structural Dynamics} as well as \textit{AIP Conference Proceedings}. There are new options \texttt{adv}, \texttt{apm}, \texttt{sd}, and \texttt{cp}.} + +\item \textbf{Added support for the Society of Rheology (\texttt{sor}) and its journal, \textit{Journal of Rheology} (\texttt{jor}).} + +\item \textbf{The \texttt{reprint} style for AIP's journal JMP was changed to one-column formatting.} + +\item \textbf{For all APS journal options, complete article titles are now displayed in bibliography entries citing journal articles when using Bib\TeX\ by default.} + +\item \textbf{In the \textit{Phys. Rev.} Bib\TeX\ style file, article titles in the bibliography are set in roman font}. + +\item \textbf{The behavior of the \texttt{noeprints} option has been improved}. + +\item \textbf{Support has been added for citing data sets in the Bib\TeX\ styles}. + +\item \textbf{Support for citing journals that use a DOI instead of pages or article identifiers has been improved (for APS \textit{Phys. Rev.} Bib\TeX\ style)}. + +\item \textbf{The indentation of tables of contents have been improved}. + +\item \textbf{The \texttt{onecolumn} option no longer defaults to creating a separate title page}. + +\item \textbf{The \texttt{showpacs} option is completely ignored now}. + +\item \textbf{A bug when using \texttt{booktabs.sty} has been fixed}. + +\item \textbf{The formatting of references for some commonly cited journals has been improved in the \textit{Phys. Rev.} Bib\TeX\ style}. + +\item \textbf{URLs generated for DOIs now use \texttt{https://doi.org/} as the base in the Bib\TeX\ styles.} + +\item \textbf{URLs generated for arXiv.org e-print identifiers now use \texttt{https://arXiv.org/abs/} as the base in the Bib\TeX\ styles.} + +\end{itemize} + +\subsection{\revtex~4 Backwards Compatibility} +Documents prepared under \revtex~4 and \revtex~4.1 should process correctly under \revtex~4.2. However, the formatting of the pages and, if using Bib\TeX, the references may change. Under 4.2, articles typeset with the \texttt{prb} option will be typeset \texttt{cite} commands differently and adjacent punctuation may need to be moved accordingly. Default behaviors some other options may also have changed as described above. + + + +\subsection{Submitting to APS Journals} + +Authors using \revtex~4.2 to prepare a manuscript for submission to +\textit{Physical Review Letters}, \textit{Physical Review}, \textit{Reviews of Modern Physics}, +or other APS journals must also read the companion document \textit{APS Author Guide for \revtex~4.2} +distributed with \revtex\ and follow the guidelines detailed there. + +The \revtex~4.2 distribution includes both a template +(\file{apstemplate.tex}) and a sample document (\file{apssamp.tex}). +The template is a good starting point for a manuscript. In the +following sections are instructions that should be sufficient for +creating a paper using \revtex~4.2. + +Further information about submissions to the American +Physical Society may be found at \url{http://journals.aps.org/revtex/}. + +\subsection{Submitting to AIP Journals} + +\revtex~4.2 includes support for the journals of the American Institute of Physics. +The style files and authoring guides for these journals are distributed as part +\revtex~4.2 distribution. The distribution includes both a template +(\file{aiptemplate.tex}) and a sample document (\file{aipsamp.tex}). +The template is a good starting point for a manuscript. In the +following sections are instructions that should be sufficient for +creating a paper using \revtex~4.2. + + + +More information may be found at +\url{http://publishing.aip.org/authors/preparing-your-manuscript}. Please consult the \textit{Author's Guide to AIP Substyles for \revtex~4.2} for more information about submissions to AIP journals, AIP styles files, and other AIP-specific information. + +\subsection{Contact Information}\label{sec:aipresources}% +Any bugs, problems, or inconsistencies with \revtex\ or the APS journal style files should be reported to +\revtex\ support at \verb+revtex@aps.org+. Reports should include information on the error and a \textit{small} +sample document that manifests the problem if possible (please don't send large files!). Issues related to the AIP journal styles should be sent directly to \verb+tex@aip.org+. + +\section{Some \LaTeXe\ Basics} +\revtex~4.2 must sometimes patch the underlying +\LaTeX\ kernel. This means that \revtex~4.2 requires a fairly recent version of +\LaTeXe. Versions prior to 2005/12/01 may not work +correctly. \revtex~4.2 will be maintained to be compatible with future +versions of \LaTeXe. + +\subsection{Useful \LaTeXe\ Markup} +\LaTeXe\ markup is the preferred way to accomplish many basic tasks. + +\subsubsection{Fonts} + +Because \revtex~4.2 is based upon \LaTeXe, it inherits all of the +macros used for controlling fonts. Of particular importance are the +\LaTeXe\ macros \cmd{\textit}, \cmd{\textbf}, \cmd{\texttt} for changing to +an italic, bold, or typewriter font respectively. One should always +use these macros rather than the lower-level \TeX\ macros \cmd{\it}, +\cmd{\bf}, and \cmd{\tt}. The \LaTeXe\ macros offer +improvements such as better italic correction and scaling in super- +and subscripts for example. Table~\ref{tab:fonts} +summarizes the font selection commands in \LaTeXe. + +\begin{table} +\caption{\label{tab:fonts}\LaTeXe\ font commands} +\begin{ruledtabular} +\begin{tabular}{ll} +\multicolumn{2}{c}{\textbf{Text Fonts}}\\ +\textbf{Font command} & \textbf{Explanation} \\ +\cmd\textit\marg{text} & Italics\\ +\cmd\textbf\marg{text} & Boldface\\ +\cmd\texttt\marg{text} & Typewriter\\ +\cmd\textrm\marg{text} & Roman\\ +\cmd\textsl\marg{text} & Slanted\\ +\cmd\textsf\marg{text} & Sans Serif\\ +\cmd\textsc\marg{text} & Small Caps\\ +\cmd\textmd\marg{text} & Medium Series\\ +\cmd\textnormal\marg{text} & Normal Series\\ +\cmd\textup\marg{text} & Upright Series\\ + &\\ +\multicolumn{2}{c}{\textbf{Math Fonts}}\\ +\cmd\mathit\marg{text} & Math Italics\\ +\cmd\mathbf\marg{text} & Math Boldface\\ +\cmd\mathtt\marg{text} & Math Typewriter\\ +\cmd\mathsf\marg{text} & Math Sans Serif\\ +\cmd\mathcal\marg{text} & Calligraphic\\ +\cmd\mathnormal\marg{text} & Math Normal\\ +\cmd\bm\marg{text}& Bold math for Greek letters\\ + & and other symbols\\ +\cmd\mathfrak\marg{text}\footnotemark[1] & Fraktur\\ +\cmd\mathbb\marg{text}\footnotemark[1] & Blackboard Bold\\ +\end{tabular} +\end{ruledtabular} +\footnotetext[1]{Requires \classname{amsfonts} or \classname{amssymb} class option} +\end{table} + +\subsubsection{User-defined macros} +\LaTeXe\ provides several macros that enable users to easily create new +macros for use in their manuscripts: +\begin{itemize} +\footnotesize +\item \cmd\newcommand\marg{\\command}\oarg{narg}\oarg{opt}\marg{def} +\item \cmd\newcommand\verb+*+\marg{\\command}\oarg{narg}\oarg{opt}\marg{def} +\item \cmd\renewcommand\marg{\\command}\oarg{narg}\oarg{opt}\marg{def} +\item \cmd\renewcommand\verb+*+\marg{\\command}\oarg{narg}\oarg{opt}\marg{def} +\item \cmd\providecommand\marg{\\command}\oarg{narg}\oarg{opt}\marg{def} +\item \cmd\providecommand\verb+*+\marg{\\command}\oarg{narg}\oarg{opt}\marg{def} +\end{itemize} +Here \meta{\\command} is the name of the macro being defined, +\meta{narg} is the number of arguments the macro takes, +\meta{opt} are optional default values for the arguments, and +\meta{def} is the actually macro definiton. \cmd\newcommand\ creates a +new macro, \cmd\renewcommand\ redefines a previously defined macro, +and \cmd\providecommand\ will define a macro only if it hasn't +been defined previously. The *-ed versions are an optimization that +indicates that the macro arguments will always be ``short'' arguments. This is +almost always the case, so the *-ed versions should be used whenever +possible. + +The use of these macros is preferred over using plain \TeX's low-level +macros such as +\cmd\def{},\cmd\edef{}, and \cmd\gdef{}. APS authors must follow the +\textit{APS Author Guide for \revtex~4.2} when defining macros. + +\subsubsection{Symbols} + +\LaTeXe\ has added some convenient commands for some special symbols +and effects. These are summarized in Table~\ref{tab:special}. See +\cite{Guide} for details. + +\begin{table} +\caption{\label{tab:special}\LaTeXe\ commands for special symbols and effects} +\begin{ruledtabular} +\begin{tabular}{lc} +Command & Symbol/Effect\\ +\cmd\textemdash & \textemdash\\ +\cmd\textendash & \textendash\\ +\cmd\textexclamdown & \textexclamdown\\ +\cmd\textquestiondown & \textquestiondown\\ +\cmd\textquotedblleft & \textquotedblleft\\ +\cmd\textquotedblright & \textquotedblright\\ +\cmd\textquoteleft & \textquoteleft\\ +\cmd\textquoteright & \textquoteright\\ +\cmd\textbullet & \textbullet\\ +\cmd\textperiodcentered & \textperiodcentered\\ +\cmd\textvisiblespace & \textvisiblespace\\ +\cmd\textcompworkmark & Break a ligature\\ +\cmd\textcircled\marg{char} & Circle a character\\ +\end{tabular} +\end{ruledtabular} +\end{table} + +\LaTeXe\ provides additional symbols in a +separate package called \classname{latexsym}. To use these symbols, include +the package using: +\begin{verbatim} +\usepackage{latexsym} +\end{verbatim} + +\subsection{Using \LaTeXe\ packages with \revtex}\label{sec:usepackage}% + +Many \LaTeXe\ packages are available, for instance, on CTAN at +\url{http://www.ctan.org/tex-archive/macros/latex/required/} +and at +\url{http://www.ctan.org/tex-archive/macros/latex/contrib/}. Full \TeX\ distributions +such as \TeX\ +Live \url{http://www.tug.org/texlive/} provide an excellent and complete installation of \TeX\ that is +easy to maintain. Some of these packages +are automatically loaded by \revtex~4.2 when certain class options are +invoked and are, thus, ``required.'' They will either be distributed +with \revtex\ or are already included with a standard \LaTeXe\ +distribution. + +Required packages are automatically loaded by \revtex\ on an as-needed +basis. Other packages should be loaded using the +\cmd\usepackage\ command. To load the +\classname{hyperref} package, the document preamble might look like: +\begin{verbatim} +\documentclass{revtex4-2} +\usepackage{hyperref} +\end{verbatim} + +Some common (and very useful) \LaTeXe\ packages are \textit{a priori} +important enough that \revtex~4.2 has been designed to be specifically +compatible with them. +A bug stemming from the use of one of these packages in +conjunction with any of the APS journals may be reported by contacting +\revtex\ support. +\begin{description} +\item[\textbf{AMS packages}] \revtex~4.2 is compatible with and depends + upon the AMS packages +\classname{amsfonts}, +\classname{amssymb}, and +\classname{amsmath}. In fact, \revtex~4.2 requires use of these packages +to accomplish some common tasks. See Section~\ref{sec:math} for more. +\revtex~4.2 requires version 2.0 or higher of the AMS-\LaTeX\ package. + +\item[\textbf{array and dcolumn}] +The \classname{array} and \classname{dcolumn} packages are part of +\LaTeX's required suite of packages. \classname{dcolumn} is required +to align table columns on decimal points (and it in turn depends upon +the \classname{array} package). + +\item[\textbf{longtable}] +\file{longtable.sty} may be used for large tables that will span more than one +page. \revtex~4.2 dynamically applies patches to longtable.sty so that +it will work in two-column mode. + +\item[\textbf{hyperref}] \file{hyperref.sty} is a package that is +used for putting hypertext links into \LaTeXe\ documents. +\revtex~4.2 has hooks to allow e-mail addresses and URL's to become +hyperlinks if \classname{hyperref} is loaded. + +\item[\textbf{booktabs}] \revtex~4.2 improves compatibility with \classname{booktabs.sty}. + +\end{description} + +Other packages will conflict with \revtex~4.2 and should be +avoided. Usually such a conflict arises because the package adds +enhancements that \revtex~4.2 already includes. Here are some common +packages that clash with \revtex~4.2: +\begin{description} +\item[\textbf{multicol}] \file{multicol.sty} is a package by Frank Mittelbach +that adds support for multiple columns. In fact, early versions of +\revtex~4.2 used \file{multicol.sty} for precisely this. \revtex\ +incorporates its own support for multiple-column typesetting. + +\item[\textbf{cite}] Donald Arseneau's \file{cite.sty} is often used to provide +support for sorting a \cmd\cite\ command's arguments into numerical +order and to collapse consecutive runs of reference numbers. \revtex~4.2 +has this functionality built-in already via the \classname{natbib} package. + +\item[\textbf{mcite}] \revtex~4.2 already contains a lot of this +functionality through its updated syntax for the \cmd\cite\ command and +the latest \classname{natbib} package. + +\item[\textbf{endfloat}] The same functionality can be accomplished +using the \classoption{endfloats} class option. + +\item[\textbf{float}] \texttt{float.sty} provides a mechanism for creating new float classes with just a few commands. \revtex~4.2 has limited compatible with float.sty. If attempting to use this package, be sure to put any \cmd\newfloat\ commands after the \verb+\begin{document}+ line. + +\end{description} + +\section{The Document Preamble} + +The preamble of a \LaTeX\ document is the set of commands that precede +the \envb{document} line. It contains a +\cmd\documentclass\ line to load the \revtex~4.2 class (\textit{i.e.}, +all of the \revtex~4.2 macro definitions), \cmd\usepackage\ macros to +load other macro packages, and other macro definitions. + +\subsection{The \emph{documentclass} line} +The basic formatting of the manuscript is controlled by setting +\emph{class options} using +\cmd\documentclass\oarg{options}\aarg{\classname{revtex4-2}}. +The optional arguments that appear in the square brackets control the layout of the +document. At this point, one only needs to choose: +\begin{itemize} +\item Either the \classoption{aps} (default) or \classoption{aip} society option +\item One of the chosen society's journal styles such as \classoption{prl} or \classoption{apl} +\item A layout option such as \classoption{preprint} (single-column formatting), \classoption{reprint} (an approximation +to the selected journal's actual layout which may be one- or two-column depending on the journal), or \classoption{twocolumn} +\end{itemize} +Usually, one would want to use \classoption{preprint} for draft papers. Paper size options are also +available as well. In particular, \classoption{a4paper} is available +as well as the rest of the standard \LaTeX\ paper sizes. A +full list of class options is given in the \textit{\revtex~4.2 Command +and Options Summary}. + +\subsection{Loading other packages} +Other packages may be loaded into a \revtex~4.2 document by using the +standard \LaTeXe\ \cmd\usepackage\ command. For instance, to load +the \classoption{graphics} package, one would use +\verb+\usepackage{graphics}+. + +\section{The Front Matter}\label{sec:front} + +After choosing the basic look and feel of the document by selecting +the appropriate class options and loading in whatever other macros are +needed, one is ready to move on to creating a new manuscript. After +the preamble, be sure to put in a \envb{document} line (and put +in an \enve{document} as well). This section describes the macros +\revtex~4.2 provides for formatting the front matter of the +article. The behavior and usage of these macros can be quite +different from those provided in the \LaTeXe\ \classname{article} class. +\subsection{Setting the title} + +The title of the manuscript is simply specified by using the +\cmd\title\aarg{title} macro. A \verb+\\+ may be used to put a line +break in a long title. + +\subsection{Specifying a date}% + +The \cmd\date\marg{date} command outputs the date on the +manuscript. Using \cmd\today\ will cause \LaTeX{} to insert the +current date whenever the file is run: +\begin{verbatim} +\date{\today} +\end{verbatim} + +\subsection{Specifying authors and affiliations} + +The \revtex~4.2 macros for specifying authors and their affiliations are designed + to save labor for authors and during production. Authors and affiliations are +arranged into groupings called, appropriately enough, \emph{author +groups}. Each author group is a set of authors who share the same set +of affiliations. Author names are specified with the \cmd\author\ +macro while affiliations (or addresses) are specified with the +\cmd\affiliation\ macro. Author groups are specified by sequences of +\cmd\author\ macros followed by \cmd\affiliation\ macros. An +\cmd\affiliation\ macro applies to all previously specified +\cmd\author\ macros which don't already have an affiliation supplied. + +For example, if Bugs Bunny and Roger Rabbit are both at Looney Tune +Studios, while Mickey Mouse is at Disney World, the markup would be: +\begin{verbatim} +\author{Bugs Bunny} +\author{Roger Rabbit} +\affiliation{Looney Tune Studios} +\author{Mickey Mouse} +\affiliation{Disney World} +\end{verbatim} +The default is to display this as +\begin{center} +Bugs Bunny and Roger Rabbit\\ +\emph{Looney Tune Studios}\\ +Mickey Mouse\\ +\emph{Disney World}\\ +\end{center} +This layout style for displaying authors and their affiliations is +chosen by selecting the class option +\classoption{groupedaddress}. Journal styles usually default this option, + so it need not be specified explicitly. The other major way of displaying this +information is to use superscripts on the authors and +affiliations. This can be accomplished by selecting the class option +\classoption{superscriptaddress}. To achieve the display +\begin{center} +Bugs Bunny,$^{1}$ Roger Rabbit,$^{1,2}$ and Mickey Mouse$^{2}$\\ +\emph{$^{1}$Looney Tune Studios}\\ +\emph{$^{2}$Disney World}\\ +\end{center} +one would use the markup +\begin{verbatim} +\author{Bugs Bunny} +\affiliation{Looney Tune Studios} +\author{Roger Rabbit} +\affiliation{Looney Tune Studios} +\affiliation{Disney World} +\author{Mickey Mouse} +\affiliation{Disney World} +\end{verbatim} + +Note that \revtex~4.2 takes care of any commas and \emph{and}'s that join +the author names together and font selection, as well as any +superscript numbering. Only the author names and affiliations should +be given within their respective macros. See below for further information +regarding the proper way to add footnotes to author names and affiliations. + +There is a third class option, \classoption{unsortedaddress}, for +controlling author/affiliation display. The default +\classoption{groupedaddress} will actually sort authors into the +approriate author groups if one chooses to specify an affiliation for +each author. The markup: +\begin{verbatim} +\author{Bugs Bunny} +\affiliation{Looney Tune Studios} +\author{Mickey Mouse} +\affiliation{Disney World} +\author{Roger Rabbit} +\affiliation{Looney Tune Studios} +\end{verbatim} +will result in the same display as for the first case given +above even though Roger Rabbit is specified after Mickey Mouse. To +avoid Roger Rabbit being moved into the same author group as Bugs +Bunny, use the +\classoption{unsortedaddress} option instead. In general, it is safest +to list authors in the order they should appear and specify +affiliations for multiple authors rather than one at a time. This will +afford the most independence for choosing the display option. Finally, +it should be mentioned that the affiliations for the +\classoption{superscriptaddress} are presented and numbered +in the order that they are encountered. These means that the order +will usually follow the order of the authors. An alternative ordering +can be forced by including a list of \cmd\affiliation\ commands before +the first \cmd{\author} in the desired order. Then use the exact same +text for each affilation when specifying them for each author. + +If an author doesn't have an affiliation, the \cmd\noaffiliation\ +macro may be used in the place of an \cmd\affiliation\ macro. + + +\subsubsection{Collaborations} + +A collaboration name can be specified with the \cmd\collaboration\ +command. This is very similar to the \cmd\author\ command. In \revtex~4.2, it can +be used with both the \classoption{superscriptaddress} and \classoption{groupedaddress} class options. The +\cmd\collaboration\ command should appear at the end of the list of +authors. The collaboration name will be appear centered in parentheses +between the list of authors and the list of +affiliations. Because collaborations +don't normally have affiliations, one needs to follow the +\cmd\collaboration\ with \cmd\noaffiliation. + +\subsubsection{Footnotes for authors, collaborations, affiliations or title}\label{sec:footau} + +Often one wants to specify additional information associated with an +author, collaboration, or affiliation such as an e-mail address, an +alternate affiliation, or some other ancillary information. +\revtex~4.2 introduces several new macros just for this purpose. They +are: +\begin{itemize} +\item\cmd\email\oarg{optional text}\aarg{e-mail address} +\item\cmd\homepage\oarg{optional text}\aarg{URL} +\item\cmd\altaffiliation\oarg{optional text}\aarg{affiliation} +\item\cmd\thanks\aarg{miscellaneous text} +\end{itemize} +In the first three, the \emph{optional text} will be prepended before the +actual information specified in the required argument. In the APS journal style files, \cmd\email\ and \cmd\homepage\ no longer have a default value. However, in the AIP styles, each have a default text for their optional arguments +(`Electronic address:' and `URL:' respectively). The \cmd\thanks\ +macro should only be used if one of the other three do not apply. Any +author name can have multiple occurences of these four macros. Note +that unlike the +\cmd\affiliation\ macro, these macros only apply to the \cmd\author\ +that directly precedes it. Any \cmd\affiliation\ \emph{must} follow +the other author-specific macros. A typical usage might be as follows: +\begin{verbatim} +\author{Bugs Bunny} +\email[E-mail me at: ]{bugs@looney.com} +\homepage[Visit: ]{http://looney.com/} +\altaffiliation[Permanent address: ] + {Warner Brothers} +\affiliation{Looney Tunes} +\end{verbatim} +This would result in the footnote ``E-mail me at: \texttt{bugs@looney.com}, +Visit: \texttt{http://looney.com/}, Permanent address: Warner +Brothers'' being attached to Bugs Bunny. Note that: +\begin{itemize} +\item Only an e-mail address, URL, or affiliation should go in the +required argument in the curly braces. +\item The font is automatically taken care of. +\item An explicit space is needed at the end of the optional text if one is +desired in the output. +\item Use the optional arguments to provide customized +text only if there is a good reason to. +\end{itemize} + +The \cmd\collaboration\ , \cmd\affiliation\ , or even \cmd\title\ can +also have footnotes attached via these commands. If any ancillary data +(\cmd\thanks, \cmd\email, \cmd\homepage, or +\cmd\altaffiliation) are given in the wrong context (e.g., before any +\cmd\title, \cmd\author, \cmd\collaboration, or \cmd\affiliation\ +command has been given), then a warning is given in the \TeX\ log, and +the command is ignored. + +Duplicate sets of ancillary data are merged, giving rise to a single +shared footnote. However, this only applies if the ancillary data are +identical: even the order of the commands specifying the data must be +identical. Thus, for example, two authors can share a single footnote +indicating a group e-mail address. + +Duplicate \cmd\affiliation\ commands may be given in the course of the +front matter, without the danger of producing extraneous affiliations +on the title page. However, ancillary data should be specified for +only the first instance of any particular institution's +\cmd\affiliation\ command; a later instance with different ancillary +data will result in a warning in the \TeX\ log. + +It is preferable to arrange authors into +sets. Within each set all the authors share the same group of +affiliations. For each author, give the \cmd\author\ (and appropriate +ancillary data), then follow this author group with the needed group +of \cmd\affiliation\ commands. + +If affiliations have been listed before the first +\cmd\author\ macro to ensure a particular ordering, be sure +that any later \cmd\affiliation\ command for the given institution is +an exact copy of the first, and also ensure that no ancillary data is +given in these later instances. + + +Each journal class option has a default behavior for the placement of these +ancillary information footnotes. For instance, the \classoption{prb} option puts all +such footnotes at the start of the bibliography while the \classoption{prl} +journal styles displays them on the first page. One can override a +journal style's default behavior by specifying explicitly the class +option +\classoption{bibnotes} (puts the footnotes at the start of the +bibliography) or \classoption{nobibnotes} (puts them on the first page). +Please consult the documentation for the various journal style files for further information. + +\subsubsection{Specifying first names and surnames} + +Many authors have names in which either the surname appears first +or in which the surname is made up of more than one name. To ensure +that such names are accurately captured for indexing and other +purposes, the \cmd\surname\ macro should be used to indicate which portion +of a name is the surname. Similarly, there is a \cmd\firstname\ macro +as well, although usage of \cmd\surname\ should be sufficient. If an +author's surname is a single name and written last, it is not +necessary to use these macros. These macros do nothing but indicate +how a name should be indexed. Here are some examples: +\begin{verbatim} +\author{Andrew \surname{Lloyd Weber}} +\author{\surname{Mao} Tse-Tung} +\end{verbatim} + +\subsection{The abstract} +An abstract for a paper is specified by using the \env{abstract} +environment: +\begin{verbatim} +\begin{abstract} +Text of abstract +\end{abstract} +\end{verbatim} +Note that in \revtex~4.2 the abstract must be specified before the +\cmd\maketitle\ command and there is no need to embed it in an explicit +minipage environment. + +\subsubsection{Structured abstracts} +A new feature in \revtex~4.2 is support for \textit{structured abstracts}. A ``structured" abstract is an abstract divided into labeled sections. For instance, \textit{Physical Review C} would like authors to provide abstracts with sections summarizing the paper's \textbf{Background}, \textbf{Purpose}, \textbf{Method}, \textbf{Results}, and \textbf{Conclusions}. This can be accomplished by using the \texttt{description} environment within the \texttt{abstract} environment. For example: +\begin{verbatim} +\begin{abstract} +\begin{description} +\item[Background] This part would describe the +context needed to understand what the paper +is about. +\item[Purpose] This part would state the purpose +of the present paper. +\item[Method] This part describe the methods +used in the paper. +\item[Results] This part would summarize the +results. +\item[Conclusions] This part would state the +conclusions of the paper. +\end{description} +\end{abstract} +\end{verbatim} + +\subsection{PACS codes} +PACS codes are obsolete. The \classoption{showpacs} option does nothing, but is present so that older documents may still be processed under \revtex~4.2. + +\subsection{Keywords} +A \cmd\keywords\ macro may also be used to indicate keywords for the +article. +\begin{verbatim} +\keywords{nuclear form; yrast level} +\end{verbatim} +This will be displayed below the abstract and PACS (if supplied). Like +PACS codes, the actual display of the the keywords is controlled by +two classoptions: \classoption{showkeys} and +\classoption{noshowkeys}. An explicit \classoption{showkeys} must be +included in the \cmd\documentclass\ line to display the keywords. + +\subsection{Institutional report numbers} +Institutional report numbers can be specified using the \cmd\preprint\ +macro. If the \classoption{preprintnumbers} class option is specified, these will be displayed in the upper right corner of the first page. Multiple \cmd\preprint\ macros maybe supplied (space is +limited though, so only three or less may actually fit). Please note that the \classoption{preprint} class option does not automatically invoke \classoption{preprintnumbers}. + +\subsection{maketitle} +After specifying the title, authors, affiliations, abstract, PACS +codes, and report numbers, the final step for formatting the front +matter of the manuscript is to execute the \cmd\maketitle\ macro by +simply including it: +\begin{verbatim} +\maketitle +\end{verbatim} +The \cmd\maketitle\ macro must follow all of the macros listed +above. The macro will format the front matter in accordance with the various +class options that were specified in the +\cmd\documentclass\ line (either implicitly through defaults or +explicitly). + +\section{The body of the paper} + +For typesetting the body of a paper, \revtex~4.2 relies heavily on +standard \LaTeXe\ and other packages (particulary those that are part +of AMS-\LaTeX). Users unfamiliar with these packages should read the +following sections carefully. + +\subsection{Section headings} + +Section headings are input as in \LaTeX. +The output is similar, with a few extra features. + +Four levels of headings are available in \revtex{}: +\begin{quote} +\cmd\section\marg{title text}\\ +\cmd\subsection\marg{title text}\\ +\cmd\subsubsection\marg{title text}\\ +\cmd\paragraph\marg{title text} +\end{quote} + +Use the starred form of the command to suppress the automatic numbering; e.g., +\begin{verbatim} +\section*{Introduction} +\end{verbatim} + +To label a section heading for cross referencing, best practice is to +place the \cmd\label\marg{key} within the argument specifying the heading: +\begin{verbatim} +\section{\label{sec:intro}Introduction} +\end{verbatim} + +In some journal substyles, such as those of the APS, +all text in the \cmd\section\ command is automatically set uppercase. +If a lowercase letter is needed, use \cmd\lowercase\aarg{x}. +For example, to use ``He'' for helium in a \cmd\section\marg{title text} command, type +\verb+H+\cmd\lowercase\aarg{e} in \marg{title text}. + +Use \cmd\protect\verb+\\+ to force a line break in a section heading. +(Fragile commands must be protected in section headings, captions, and +footnotes and \verb+\\+ is a fragile command.) + +\subsection{Paragraphs and General Text} + +Paragraphs always end with a blank input line. Because \TeX\ +automatically calculates linebreaks and word hyphenation in a +paragraph, it is not necessary to force linebreaks or hyphenation. Of +course, compound words should still be explicitly hyphenated, e.g., +``author-prepared copy.'' + +Use directional quotes for quotation marks around quoted text +(\texttt{``xxx''}), not straight double quotes (\texttt{"xxx"}). +For opening quotes, use one or two backquotes; for closing quotes, +use one or two forward quotes (apostrophes). + +\subsection{One-column vs. two-column layouts}\label{sec:widetext} + +One of the hallmarks of \textit{Physical Review} and many of the AIP journals is their two-column +formatting. \revtex~4.2 provides the \classoption{reprint} class option that provides for each +journal class option a close approximation to the journal's actual production formatting. Note that +the \classoption{reprint} option will give either one or two-column formatting as appropriate for the particular journal. +For most APS and AIP journals, the \classoption{reprint} option will take care of formatting the front matter +(including the abstract) as a single column and will typeset the body in two columns. \revtex~4.2 has its own +built-in two-column formatting macros to provide well-balanced columns as well as reasonable control over the placement of floats in either +one- or two-column modes. When drafting papers, it is common to use a one-column format. This is best achieved by using the +\classoption{preprint} class option. Authors may override a particular journal's formatting by using the lower level options \classoption{onecolumn} and \classoption{twocolumn}, but best practice is to stick with the \classoption{preprint} and \classoption{reprint} options. + +Please note that the \classoption{reprint} class option is only an \textit{approximation} of a journal's final layout. Because of font differences, figure rescaling, and other factors, authors should not expect the \classoption{reprint} option to give fully accurate estimates of an article's ultimate length after being typeset for the journal. + +Occasionally it is necessary to change the formatting from two-column to +one-column to better accommodate very long equations that are more +easily read when typeset to the full width of the page. This is +accomplished using the \env{widetext} environment: +\begin{verbatim} +\begin{widetext} +long equation goes here +\end{widetext} +\end{verbatim} +In two-column mode, this will temporarily return to one-column mode, +balancing the text before the environment into two short columns, and +returning to two-column mode after the environment has +finished. \revtex~4.2 will also add horizontal rules to guide the +reader's eye through what may otherwise be a confusing break in the +flow of text. The +\env{widetext} environment has no effect on the output under the +\classoption{preprint} class option because this already uses +one-column formatting. + +Use of the \env{widetext} environment should be restricted to the bare +minimum of text that needs to be typeset this way. However, short pieces +of paragraph text and/or math between nearly contiguous wide equations +should be incorporated into the surrounding wide sections. + +Low-level control over the column grid can be accomplished with the +\cmd\onecolumngrid\ and \cmd\twocolumngrid\ commands. Using these, one +can avoid the horizontal rules added by \env{widetext}. These commands +should only be used if absolutely necessary. Wide figures and tables +should be accommodated using the proper \verb+*+ environments. + +\subsection{Cross-referencing}\label{sec:xrefs} + +\revtex{} inherits the \LaTeXe\ features for labeling and cross-referencing +section headings, equations, tables, and figures. This section +contains a simplified explanation of these cross-referencing features. +The proper usage in the context of section headings, equations, +tables, and figures is discussed in the appropriate sections. + +Cross-referencing depends upon the use of ``tags,'' which are defined by +the user. The \cmd\label\marg{key} command is used to identify tags for +\revtex. Tags are strings of characters that serve to label section +headings, equations, tables, and figures that replace explicit, +by-hand numbering. + +Files that use cross-referencing (and almost all manuscripts do) +need to be processed through \revtex\ at least twice to +ensure that the tags have been properly linked to appropriate numbers. +If any tags are added in subsequent editing sessions, +\LaTeX{} will display a warning message in the log file that ends with +\texttt{... Rerun to get cross-references right}. +Running the file through \revtex\ again (possibly more than once) will +resolve the cross-references. If the error message persists, check +the labels; the same \marg{key} may have been used to label more than one +object. + +Another \LaTeX\ warning is \texttt{There were undefined references}, +which indicates the use of a key in a \cmd\ref\ without ever +using it in a \cmd\label\ statement. + +\revtex{} performs autonumbering exactly as in standard \LaTeX. +When the file is processed for the first time, +\LaTeX\ creates an auxiliary file (with the \file{.aux} extension) that +records the value of each \meta{key}. Each subsequent run retrieves +the proper number from the auxiliary file and updates the auxiliary +file. At the end of each run, any change in the value of a \meta{key} +produces a \LaTeX\ warning message. + +Note that with footnotes appearing in the bibliography, extra passes +of \LaTeX\ may be needed to resolve all cross-references. For +instance, putting a \cmd\cite\ inside a \cmd\footnote\ will require at +least three passes. + +Using the \classname{hyperref} package to create hyperlinked PDF files +will cause reference ranges to be expanded to list every +reference in the range. This behavior can be avoided by using the +\classname{hypernat} package available from \url{www.ctan.org}. + +\subsection{Acknowledgments} +Use the \env{acknowledgments} environment for an acknowledgments +section. Depending on the journal substyle, this element may be +formatted as an unnumbered section titled \textit{Acknowledgments} or +simply as a paragraph. Please note the spelling of +``acknowledgments.'' +\begin{verbatim} +\begin{acknowledgments} +The authors would like to thank... +\end{acknowledgments} +\end{verbatim} + +\subsection{Appendices} +The \cmd\appendix\ command signals that all following sections are +appendices, so \cmd\section\marg{title text} after \cmd\appendix\ will set +\marg{title text} as an appendix heading (an empty \marg{title text} +is permitted). For a single appendix, use a +\cmd\appendix\verb+*+ followed by \cmd\section\marg{title text} +command to suppress the appendix letter in the section heading. + +\subsection{\label{sec:lineno}Line numbering} +\revtex~4.2 provides the \classoption{linenumbers} class option to enable line numbering. While it is +possible to directly call in the \classname{lineno.sty}, using the class option ensures +that the default parameters needed to properly typeset the line numbers are set up correctly. It is +still possible for authors to override parameters such as \cmd\linenumbersep\ as usual, however. + +\section{Math and equations}\label{sec:math} + +\subsection{Math in text} + +Not surprisingly, \revtex\ uses the \TeX\ math \verb+$+ delimiters +for math embedded in text. For example, +\verb|$a^{z}$| gives $a^{z}$. Within math mode, use +\verb+^+\marg{math} for superscripts and +\verb+_+\marg{math} for subscripts. If the braces after the +\verb+^+ are omitted, \TeX{} will +superscript the next \emph{token} (generally a single character or +command). Thus it is safest to use explicit braces \verb+{}+. + +As with text, math should not require extensive explicit vertical or +horzontal motion commands, because \TeX\ calculates math spacing +itself automatically. In particular, explicit spacing around +relations (e.g., $=$) or operators (e.g., $+$) should be +unnecessary. These suggestions notwithstanding, some fine-tuning of +math is required in specific cases, see Chapter~18 in the \TeX +book\cite{TeXbook}. + +\subsection{Text in math}\label{sec:textinmath} + +There are times when normal, non-italic text needs to be inserted +into a math expression. The \cmd\text\marg{text} command is the +preferred method of accomplishing this. It produces regular text +\emph{and} scales correctly in superscripts: +\verb+$y=x \text{ for } x_{\text{e-p}}$+ gives +``$y=x \text{ for } x_{\text{e-p}}$''. To use the \cmd\text\ command, +the \classname{amsmath} package must be loaded: include a +\cmd\usepackage\aarg{\classname{amsmath}} command in the document +preamble or use the class option \classoption{amsmath}. Please note +that \revtex~4.2 requires version 2.0 or higher of \classname{amsmath}. + +Other common alternatives may be less desirable. Using the standard +\LaTeXe\ \cmd\mbox\marg{text} will give normal text, including a hyphen, +but will not scale correctly in superscripts: +\verb+$x_{\mbox{e-p}}$+ gives ``$x_{\mbox{e-p}}$''. +The \cmd\rm\ command +only switches to Roman font for math letters. It does not, for +example, handle hyphens correctly: +\verb+$$x_{\rm{e-p}}$+ gives ``$x_{\rm e-p}$''. But note that with +\cmd\textrm{}, it does work: \verb+$x_{\textrm{e-p}}$+ gives ``$x_{\textrm{e-p}}$''. + +\subsection{Displayed equations}\label{sec:dispmath} + +Equations are set centered in the column width or flush left depending +on the selected journal substyle. + +For the simplest type of displayed equation, a numbered, one-line +equation, use the \env{equation} environment. +\revtex\ takes care of the equation number% +---the number will be set below the equation if necessary. +Use \cmd\[\dots\cmd\] for a single, one-line unnumbered display equation. + +Use the \env{eqnarray} environment when more than one consecutive +equation occurs, putting each equation in a separate row of the +environment, and using \cmd\nonumber\ before the row end (\cmd\\) to +suppress the equation number where necessary. If the equations are +related to each other, align each on the respective relation operator +(such as $=$). + +When an equation is broken over lines or is continued over multiple +relation operators, it is called a multi-line or continued equation, +respectively; here, too, use the \env{eqnarray} environment. + +For a continued equation, align each row on the relation operator just +as with multiple equations, and use the \cmd\nonumber\ command to +suppress auto-numbering on broken lines. Also, use the starred form +of the row end (\cmd\\\verb+*+) to prevent a pagebreak at that +juncture. + +Short displayed equations that can appear together on a single line +separated by \cmd\qquad\ space may be placed in a single +\env{equation} environment. + +As explained in Section~\ref{sec:widetext}, occasionally in two-column +mode a long equation, in order to fit it in the narrow column width, +would need to be broken into so many lines that it would affect +readibility. Set it in a wide column using the \env{widetext} +environment. Then return to the normal text width as soon as +possible. + +The sample file \file{apssamp.tex} illustrates how to obtain each of +the above effects. + +\subsection{Numbering displayed equations} + +\revtex~4.2 automatically numbers equations. +For single-line and multi-line equations, use the +\env{equation} and \env{eqnarray} environments as described above. +For unnumbered single-line equations, use the \verb+\[+\dots\verb+\]+ +construction. The command \cmd\nonumber\ will suppress the numbering +on a single line of an +\env{eqnarray}. +For a multi-line equation with no equation numbers at all, +use the \env{eqnarray*} environment. + +A series of equations can be a labeled with a lettered sequence, +e.g., (3a), (3b), and (3c), by +putting the respective \env{equation} or \env{eqnarray} environment within a +\env{subequations} environment. +The \classname{amsmath} package (can be loaded with the +\classoption{amsmath} class option) is required for this. + +Use the command \cmd\tag\marg{number} to produce an idiosyncratic +equation number: $(1')$, for example. Numbers assigned by \cmd\tag\ +are completely independent of \revtex's automatic numbering. The +package \classname{amsmath} is required for using the \cmd\tag\ +command. Please +note that the use of the \texttt{tag} command may conflict with the use of the \classoption{hyperref} package +due an incompatibility between \classoption{amsmath} and \classoption{hyperref}. + +To have \revtex{} reset the equation numbers at the start of each section, +use the \classoption{eqsecnum} class option in the document preamble. + +See the sample file \file{apssamp.tex} for some examples. + +\subsection{Cross-referencing displayed equations} + +To refer to a numbered equation, use +the \cmd\label\marg{key} and \cmd\ref\marg{key} commands. +The \cmd\label\marg{key} command is used within the referenced equation +(on the desired line of the \env{eqnarray}, if a multi-line equation): +\begin{verbatim} +\begin{equation} + A=B \label{pauli} +\end{equation} + ... It follows from Eq.~(\ref{pauli}) +that this is the case ... +\begin{eqnarray} + A & = &B,\label{pauli2}\\ + A'& = &B' +\end{eqnarray} +\end{verbatim} +gives +\begin{equation} +A=B \label{pauli} +\end{equation} + ... It follows from Eq.~(\ref{pauli}) +that this is the case ... +\begin{eqnarray} +A & = &B,\label{pauli2}\\ +A'& = &B' +\end{eqnarray} + +Please note the parentheses surrounding the \cmd\ref\ command. +These are \emph{not} provided automatically and, thus, must be +explicitly incorporated. + +Numbers produced with \cmd\tag\ can also be cross-referenced by adding +a \cmd\label\ command after the \cmd\tag\ command. + +Using a \cmd\label\ after \envb{subequations} to reference the +\emph{general} number of the equations in the +\env{subequations} environment. For example, if +\begin{verbatim} +\begin{subequations} + \label{allequations} % notice location + \begin{eqnarray} + E&=&mc^2,\label{equationa} + \\ + E&=&mc^2,\label{equationb} + \\ + E&=&mc^2,\label{equationc} + \end{eqnarray} +\end{subequations} +\end{verbatim} +% +gives the output +\begin{subequations} +\label{allequations} % notice location +\begin{eqnarray} +E&=&mc^2,\label{equationa} +\\ +E&=&mc^2,\label{equationb} +\\ +E&=&mc^2,\label{equationc} +\end{eqnarray} +\end{subequations} +% +then \verb+Eq.~(\ref{allequations})+ gives ``Eq.~(\ref{allequations})''. + +{\bf Note:} incorrect cross-referencing will result if +\cmd\label\ is used in an unnumbered single-line equation +(i.e., within the \verb+\[+ and \verb+\]+ commands), +or if \cmd\label\ is used on a line of an eqnarray that is not being numbered +(i.e., a line that has a \cmd\nonumber). + +\subsection{Using the AMS packages \classoption{amsfonts}, +\classoption{amssymb}, and \classoption{amsmath}}\label{AMS} + +The American Mathematical Society's AMS-\LaTeX\ packages provided extra +fonts, symbols, and math markup that are quite convenient. \revtex~4.2 +supports the use of these packages directly. To use the \classoption{amsfonts}, +\classoption{amssymb}, and \classoption{amsmath} class options, +AMS-\LaTeX\ (and perhaps the additional AMS fonts) will need to be +installed. Please note that \revtex~4.2 requires version 2.0 or higher +of AMS-\LaTeX. These packages can be downloaded from +\url{http://www.ams.org/tex/}. + +There are two class options for accessing the AMS fonts: +\classoption{amsfonts} and \classoption{amssymb}. +The \classoption{amsfonts} option defines the \cmd\mathfrak\ and +\cmd\mathbb\ commands to switch to the Fraktur and +Blackboard Bold fonts, respectively. +These fonts are selected with the \cmd\mathfrak\ and \cmd\mathbb\ +font-switching commands: +\verb+${\mathfrak{G}}$+ gives a Fraktur ``$\mathfrak{G}$'' +and \verb+${\mathbb{Z}}$+ gives a Blackboard Bold ``$\mathbb{Z}$''. +\revtex{} does not currently support the use of the extra Euler fonts +(the AMS fonts starting with \texttt{eur} or \texttt{eus}) or the +Cyrillic fonts (the AMS fonts starting with \texttt{w}). + +The \classoption{amssymb} class option gives all the font +capabilities of the +\classoption{amsfonts} class option and further defines the commands +for many commonly used math symbols. These symbols will scale +correctly in superscripts and other places. See the AMS-\LaTeX\ +documentation for the complete list of symbols available. + +\subsection{Bold symbols in math}\label{sec:bboxamsfonts} + +\revtex~4.2 uses the standard \LaTeXe\ Bold Math (\classname{bm}) package as the +basis for creating bold symbols in math mode. As usual, this requires +an explicit \cmd\usepackage\aarg{\classname{bm}} in the document +preamble. The command +\cmd\bm\marg{symbol} makes \marg{symbol} bold in math mode, ensuring +that it is the correct size, even in superscripts. If the correct font +in the correct size is not available then result is the \marg{symbol} +set at the +correct size in lightface and a \LaTeXe\ warning that says +``\texttt{No boldmath typeface in this size}\dots''. Most bold special +characters will require that the AMS fonts be installed and the +\classoption{amsfonts} class option be invoked. + +\cmd\bm\ is the proper means to get bold Greek characters---upper- and +lowercase---and other symbols. +The following will come out bold with \cmd\bm: +normal math italic letters, numbers, +Greek letters (uppercase and lowercase), +small bracketing and operators, and \cmd\mathcal. Fraktur +characters will come out bold in a \cmd\bm; however, Blackboard Bold +requires using the \cmd\mathbb\ command rather than \cmd{\bm}. +The \classoption{amsfonts} option adds support for bold math +letters and symbols in smaller sizes and in superscripts when a +\cmd\bm\marg{symbol} is used. +For example, \verb+$\pi^{\bm{\pi}}$+ gives a bold +lowercase pi in the superscript position: $^{\pi\bm{\pi}}$. + +Note that \cmd\bm\marg{math} is a fragile command and, thus, should be +preceded by \cmd\protect\ in commands with moving arguments. + +\section{Footnotes} +\LaTeX's standard \cmd\footnote\ command is available in +\revtex~4.2. The footnote text can either appear at the bottom of a page or +as part of the bibliography. This choice can be controlled by two class options: +\classoption{footinbib} and \classoption{nofootinbib}. \revtex~4.2 +defaults to the former. Specific journal options may select a +different value than the default. + +Please note that even if Bib\TeX\ is not being used for the references, you +may have to run Bib\TeX\ if you are using footnotes without the \classoption{nofootinbib} option. +The log file will contain errors about missing references such as \texttt{Note1} in this case and a file ending in +\texttt{Notes.bib} will have been produced during the processing of the \TeX\ file. + +Note that in the latter case, the +argument of the +\cmd\footnote\ command is a moving argument in the sense of the \LUG, +Appendix~C.1.3: any fragile command within that argument must be +preceded by a \cmd\protect\ command. + +The \cmd\footnote\ macro \emph{should not} be used in the front +matter for indicating author/affiliation relationships or to provide +additional information about authors (such as an e-mail +address). See Section~\ref{sec:footau} for the proper way to do +this. + +Finally, footnotes that appear in tables behave differently. They +will be typeset as part of the table itself. See +Section~\ref{sec:tablenote} for details. + +\section{Citations and References}\label{sec:endnotes} + +\revtex~4.2 adds significant new functionality to \revtex~4's +typesetting of citations and references. The new functionality is +designed to make it easier to use Bib\TeX\ and produce the desired output +in the reference section without having to edit Bib\TeX's output. The new features include: +\begin{itemize} +\item Endnotes created with the \cmd\footnote\ command are automatically interleaved with the bibliographic references. \revtex~4 would typeset all endnotes at the end of the bibliography. +\item Combining multiple references automatically into a single entry in the bibliography. \revtex~4 required by-hand editing of Bib\TeX\ output. This is achieved by prepending an asterisk (*) to the reference's \textit{key} in the \cmd\cite\ command. \verb+\cite{{key1,*key2}+ would make a single entry in the bibliography by combining into one \cmd\bibitem\ the entries from the \texttt{.bib} file with keys \textit{key1} and \textit{key2}. See Section~\ref{sec:multiple} for more details. +\item Text can be prepended or appended to an entry in the bibliography. \revtex~4 required by-hand editing of the Bib\TeX\ output. See Section~\ref{sec:prepend} for an example of how to do this. +\end{itemize} + +Proper formatting of references requires Patrick Daly's \classname{natbib} citation package. \BibTeX\ style files +for APS and AIP journals are created using his \classname{custom-bib} tool kit. From an author's point of view, all this means is that a proper +\revtex~4.2 installation requires having \classname{natbib} (version 8.31a +or higher) installed. It also means that the full set of +\classname{natbib} functionality is available from within \revtex~4.2 +(but see the \textit{APS Author Guide for \revtex~4.2} and \textit{Author's Guide to AIP Substyles for \revtex~4.2} for restrictions if +submitting to an APS or AIP journal). The \classname{natbib} documentation contains many examples; see in +particular the \verb+natnotes.tex+ file for a convenient summary. Please also note that \classname{natbib 8.3} and later now gives an error (rather than merely a warning as in earlier versions) if you try to use a Bib\TeX\ file that isn't compatible with author-year style citations with a journal style that requires author-year citations (such as \textit{Reviews of Modern Physics}). + +\subsection{Citing a reference} +As in standard \LaTeX, references are cited in text using the +\cmd\cite\marg{key} command and are listed in the bibliography using +the \cmd\bibitem\marg{key} command. The \cmd\cite{} macro enables +\revtex~4.2 to automatically number the references in the manuscript. + +A typical example might be: +\begin{verbatim} +String theory\cite{GSW} attempts to +provide a theory of everything. +\end{verbatim} +The corresponding \cmd\bibitem{} would be: +\begin{verbatim} +\bibitem{GSW} M.~Greene, J.~Schwarz, and +E.~Witten, \textit{Superstring Theory: +Introduction}, (Cambridge University +Press, London, 1985). +\end{verbatim} + +Journals differ in how the \cmd\cite\ will be displayed. Most APS journals +display the citation in-line, as a number, enclosed in square brackets, +\textit{e.g.}, ``String theory[1] attempts\dots.'' Other journals +may instead use a number in a superscript: ``String theory$^{1}$ attempts\dots.'' +Selecting the journal substyle using a class option will invoke the appropriate style. +In journal substyles using superscripts, +the macro the \cmd\onlinecite\marg{key} is necessary to get the number +to appear on the baseline. +For example, ``String theory (see, for example, +\verb+Ref.~\onlinecite{GSW}+)'' will give the output +``String theory (see, for example, Ref.~1).'' + +The \cmd{\onlinecite} command has the same semantics as +\classname{natbib}'s \cmd{\citealp} command. + +A \cmd\cite\ command with multiple keys is formatted with consecutive +reference numbers collapsed; e.g., [1,2,3,5] will be output as +[1--3,5]. To split the list over more than one line, use +a \verb+%+ character immediately following a comma: +\begin{verbatim} +. . . \cite{a,b,c,d,e,f,% +g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z} +\end{verbatim} +The \verb+%+ avoids unwanted spaces. + +\subsection{Author/Year (Non-numeric) Citations} + +\textit{Reviews of Modern Physics} uses a citation style based on the +first author's last name and the year of the reference rather than a +simple number. Support for this style of citing references is the +primary reason \revtex~4.2 uses the \classname{natbib} +package. \classname{natbib} uses an optional argument to the +\cmd\bibitem\ macro to specify what text to use for the \cmd\cite\ +text: +\begin{quote} +\cmd\bibitem\verb+[+\meta{short-name}\verb+(+\meta{year}\verb+)+\meta{long-name}\verb+]+ +\end{quote} +where \meta{short-name} is the author name used in a parenthetical citation, +\meta{long-name} that used in a textual citation, and +\meta{year} is the year. More concretely, the \cmd\bibitem\ example +above would appear as +\begin{verbatim} +\bibitem[Greene et al.(1985)Green, +Schwarz, and Witten]{GSW} +M.~Greene, J.~Schwarz, and E.~Witten, +\textit{Superstring Theory}, +(Cambridge Press, London, 1985). +\end{verbatim} + +When the citation constitutes part of the grammar of the sentence, +the \cmd\textcite\marg{key} command may be used (analogous to the +\cmd\onlinecite\ command above). Both \cmd\textcite\ and +\cmd\onlinecite\ are built upon \classname{natbib}'s rich repertoire of +macros (\cmd\citep{}, \cmd\citet{}, etc.). These macros are available in +\revtex~4.2; however, APS authors must follow the +\textit{APS Author Guide for \revtex~4.2} +guidelines regarding \classname{natbib}'s macros. + +\subsection{Combined Author/Year and Numeric Citations} + +AIP's \textit{Journal of Mathematical Physics} uses a combined author/year and numerical citation style. \revtex~4.2 supports this referencing style. Please see the \textit{Author's Guide to AIP Substyles for \revtex~4.2} for more information about this style. + +\subsection{\label{sec:use-bib}Using Bib\TeX} + +The \cmd\bibitem{} entries can be coded by hand as above, of course, but the +use of \BibTeX\ with the new style files provided with \revtex~4.2 makes +it particularly simple to generate marked-up references that can, for +instance, take advantage of packages like +\classname{hyperref} for linking. They also save the trouble of having +to specify formatting like the italics for the book title in the above +example. And, for those wishing to use author/year citations, \BibTeX\ +will automatically generate the appropriate optional arguments for the +\cmd\bibitem\ commands. + +\BibTeX\ is an adjunct to \LaTeX\ that aids in the +preparation of bibliographies. \BibTeX\ allows authors to build up a +database or collection of bibliography entries that may be used for many +manuscripts. A \BibTeX\ style file then specifies how to transform the +entries into a proper \cmd\bibitem{} for a particular journal. Here we +give a brief summary of how to get started with \BibTeX. More details can be +found in the LaTeX books listed in the references. + +Selecting a journal style by using an appropriate class option will +automatically select the correct \BibTeX\ style file from those included in +\revtex~4.2. Five basic \BibTeX\ style files are included: \file{apsrev4-2.bst} (APS journals using a numeric citation style, \textit{i.e.}, all but RMP), \file{apsrmp4-2.bst} (author/year style citations for RMP), +\file{aipauth4-2.bst} (AIP journal using an author/year citation style), \file{aipnum4-2.bst} (AIP journals using a numeric citation style) and \file{aapmrev4-2.bst} for AAPM journals. The selection can be overridden by specifying an +alternative \file{.bst} file using the standard \LaTeXe +\cmd\bibliographystyle\ macro. This must appear in the preamble +before the \envb{document} line in \revtex~4.2 (this differs from +standard \LaTeX). + +The \BibTeX\ database files will contain entries such as: +\begin{verbatim} +@Book{GSW, + author=``M. Greene, J. Schwarz, + E. Witten'', + title=``Superstring theory: + Introduction'', + publisher=``Cambridge University + Press'', + address=``London'', + year=``1985'' +} +\end{verbatim} +There are entry formats for articles, technical reports, e-prints, +theses, books, proceedings, and articles that appear in books or +proceedings. The styles provided with +\revtex~4.2 also allows URL's and e-print identifiers to be specified +for any of the different entry types. There is also an additional +``collaboration'' field that can be used in addition to ``author'.' + +To actually create the bibliography in the manuscript, the +\cmd\bibliography\marg{bib files} macro is used. +Here \meta{bib files} is a comma-separated list of \BibTeX\ bibliography +database files, each with the \file{.bib} extension. The +\cmd\bibliography\ macro should be placed at the location where the +references are to appear (usually after the main body of the +paper). When the manuscript is processed with \LaTeX\ for the first +time, the keys corresponding for the \cmd\cite{} macros used in the +manuscript are written out to the \file{.aux} file. Then \BibTeX\ should +be run (if the manuscript is called \file{paper.tex}, the command would +be \verb+bibtex paper+. This will produce a \file{.bbl} file containing all +of the \cmd\bibitem{}'s for the manuscript. Subsequent runs of \LaTeXe\ +will call this file in to resolve the references. \LaTeXe\ should be run +repeatedly until all references are resolved. + +The \BibTeX-produced \cmd\bibitem{}'s created using the \revtex\ style files appear considerably more complex than the example given +above. This is because the style files add in \cmd\bibinfo{}, +\cmd\bibnamefont{}, \cmd\eprint{}, and \cmd\url{} macros for +specifying additional formatting and tagging. The \cmd\bibinfo\ macro +is mostly a do-nothing macro that serves merely to tag the information with +the field information from the original entry in the \BibTeX\ database. +The \cmd\eprint\ and \cmd\url\ macros can be used to create the +appropriate hyperlinks in target formats such as PDF. + +For more information on using \BibTeX\ with \LaTeX, see Sections~4.3.1 +and~C.11.3 of the \LUG\cite{LaTeXman}, Section~13.2 of \cite{Compan}, +or the online \BibTeX\ manual \file{btxdoc.tex} from +\url{http://www.ctan.org/tex-archive/biblio/bibtex/distribs/doc/}. + +\subsubsection{\texttt{arXiv.org} support} + +\revtex~4.2 supports citing e-prints from \texttt{arXiv.org} For instance, the \texttt{.bib} entry +\begin{verbatim} +@Unpublished{Ginsparg:1988ui, + author = "Ginsparg, Paul H.", + title = "{Applied Conformal Field Theory}", + year = "1988", + eprint = "hep-th/9108028", + archivePrefix = "arXiv", + SLACcitation = "%%CITATION=HEP-TH/9108028;%%" +} +\end{verbatim} +will include the arXiv.org e-print identifier as \texttt{arXiv:hep-th/9108028} and hyperlink it (if using \texttt{hyperref}). The newer format for arXiv identifiers with primary classifications will produce appropriate output For example, + +\begin{verbatim} +@Unpublished{Ginsparg:2014, + author = "Ginsparg, Paul", + title = "{Kenneth G. Wilson: Renormalized After-Dinner Anecdotes}", + year = "2014", + eprint = "1407.1855", + archivePrefix = "arXiv", + primaryClass = "physics.hist-ph", +} +\end{verbatim} +will generate \texttt{arXiv:1407.1855 [physics.hist-ph]} and hyperlink it. + +\subsubsection{\texttt{noeprint} option} +In the \revtex~4.2 Bib\TeX\ style files, the behavior of the \texttt{noeprint} option was changed to only suppress the arXiv identifiers for journal references, but keep them for e-print references. + +\subsubsection{\label{sec:datacitations}Citing data sets with a DOI} +Bib\TeX\ styles in \revtex~4.2 add support for citing data sets using the new Bib\TeX\ type \texttt{@dataset}: + +\begin{verbatim} +@dataset{haigh:2016, + author = "Haigh, J. A. and Lambert, N. J. and + Sharma, S. and Blanter, Y. and + Bauer, G. E. W. and Ramsay, A. J.", + year = "2018", + title = "{Data from Figures in``Selection rules + for cavity-enhanced Brillouin light scattering + from magnetostatic modes" [Data set]}", + doi = "10.5281/zenodo.1284434", + note = "{Zenodo}" +} +\end{verbatim} +This results in the formatted reference: ``J. A. Haigh, N. J. Lambert, S. Sharma, Y. Blanter, G. E. W. Bauer, and A. J. Ramsay, Data from Figures in ``Selection +rules for cavity-enhanced Brillouin light scattering from magnetostatic modes" [Data set], 10.5281/zenodo.1284434 (2018), +Zenodo." + +This is primarily intended for data sets that have a DOI assigned to them. + +\subsubsection{\label{sec:doiref}Journal references with only DOIs} +Some journals have moved to using only a volume and DOI to identify an article and do not assign page numbers or article identifiers. In the \texttt{apsrev.bst} Bib\TeX\ style file used for the \textit{Phys. Rev.} journals, If the \texttt{pages} field is absent from an entry in the \texttt{bib} file, but the \texttt{doi} field is present, the DOI will be explicitly displayed and linked in the formatted reference. + +\subsubsection{\label{sec:jhep}Journals that use the year and issue for unique citations} +The \texttt{apsrev.bst} style used for \textit{Phys. Rev.} journals now includes support for four journals that use the year in place of a volume and require an explicit issue to uniquely cite a paper: + +\begin{itemize} + \item J. High Energy Phys. + \item J. Cosmol. Astropart. Phys. + \item J. Instrum. + \item J. Stat. Mech.: Theory Exp. + \end{itemize} + + The Bib\TeX\ entry must \textbf{exactly} match one of the these four abbreviated journal names or use the corresponding macro, \texttt{jhep}, \texttt{jcap}, \texttt{jinst}, or \texttt{jstat}, resp., to invoke the proper formatting. For example: + +\begin{verbatim} +@Article{Cotogno2017, + author="Cotogno, Sabrina and van Daal, Tom + and Mulders, Piet J.", + title="Positivity bounds on gluon {TMDs} + for hadrons of spin $\le$ 1",, + journal=jhep, + year="2017", + month="Nov", + day="28", + volume="2017", + number="11", + pages="185", + doi="10.1007/JHEP11(2017)185", + url="https://doi.org/10.1007/JHEP11(2017)185" +} +\end{verbatim} +will be formatted as ``S. Cotogno, T. van Daal, and P. J. Mulders, Positivity bounds on gluon TMDs for hadrons of spin $\le$ 1, J. High Energy Phys. 2017 (11), 185." + +\subsection{\label{sec:multiple}Multiple references in a single bibliography entry} +\revtex~4.2 allows multiple references within a single bibliography entry when using Bib\TeX. This done by using a starred (*) argument to the \cmd\cite\ command, and it requires a compatible version of \texttt{natbib} and the \texttt{bst} files that come with \revtex~4.2. To combine multiple references into a single \cmd\bibitem, precede the second, third, etc. citation keys in the \cmd\cite\ command with an asterisk (*). For example \verb+\cite{bethe, *feynman, *bohr}+ will combine the \cmd\bibitem\relax s with keys \texttt{bethe}, \texttt{feynman}, and \texttt{bohr} into a single entry in the bibliography separated by semicolons. + +\subsection{\label{sec:prepend}Prepending and/or appending text to a citation} +The expanded syntax for the \cmd\cite\ command argument can also be used to specify text before and/or after a citation. For instance, a citation such as: +\begin{verbatim} +[19] A similar expression was derived in +A. V. Andreev, Phys. Rev. Lett. 99, 247204 +(2007) in the context of carbon nanotube +p-n junctions. The only difference is that no +integration over ky is present there. +\end{verbatim} +may be created by the following \cmd\cite\ command: +\begin{verbatim} +\cite{*[{A similar expression was derived +in }] [{ in the context of carbon nanotube +p-n junctions. The only difference is that +no integration over ky is present +there.}] andreev2007} +\end{verbatim} +Please note the use of curly braces to enclose the text within the square brackets as well as the spaces next to the brackets. + + + +\section{Figures and Artwork}\label{sec:figures} +\subsection{\texttt{figure} environment} + +Figures may be included into a \revtex~4.2 manuscript by using the +standard \LaTeXe\ macros. It should be noted that \LaTeXe\ includes +several powerful packages for including the files in various +formats. The two main packages are \classname{graphics} and +\classname{graphicx}. Both offer a macro called +\cmd\includegraphics\oarg{args}\marg{filename}; +they mainly differ in how arguments for +controlling figure scaling, translation, and orientation +are specified. For more information on the enhancements of the \classname{graphicx} package, +see \cite{CompanG} or the guide \file{grfguide.pdf} available at +\url{http://www.ctan.org/tex-archive/macros/latex/required/graphics/}. +\revtex~4.2 no longer has the \classoption{epsf} class option, though +the \classname{epsfig} package provides a similar interface. + + +The \env{figure} environment should be used to add a caption to the figure and +to allow \LaTeX\ to number and place the figures where they fit best. +\LaTeX\ will label and automatically number the captions FIG.~1, +FIG.~2, etc. For example: +\begin{verbatim} +\begin{figure} + \includegraphics{fig1.eps} + \caption{\label{fig1}Text of first caption.} +\end{figure} +\end{verbatim} +Note how the \cmd\label\marg{key} command is used to cross-reference +figures in text. The \cmd\label\marg{key} command should be inserted +inside the figure caption. As usual, the \cmd\ref\marg{key} macro can +then by used to refer to the label: ``As depicted in +FIG.\verb+~\ref{fig1}+\dots''. + +Figures are normally set to the width of the column in +which they are placed. This means that in two-column mode, the figure +will be placed in a single, narrow column. For wide figures, the +\cmd\figure\verb+*+ environment should be used +instead. This will place the figure across both columns (the figure +usually will +appear either at the top or the bottom of the following page). + + +Captions less than one line long are centered under the figure, +otherwise they span the width of the figure. + +Note that is unnecessary (and undesirable) to use explicit centering +commands inside the float environments. + +\subsection{\texttt{video} environment} +Papers often refer to multimedia material such as videos. The \texttt{video} environment is identical to the \texttt{figure} environment, but the caption will be labeled as a \textbf{Video} (with its own counter independent of figures). A URL can also be specified so that the caption label can be linked to the online video (if using the \texttt{hyperref} package). The included graphic (using \cmd\includegraphics\ from the \texttt{graphics} or \texttt{graphicx} package) would be a representation frame from the video. A \texttt{\cmd\listofvideos} is also provided. For example: +\begin{verbatim} +\begin{video} +\includegraphics{videoframe.jpg} +\setfloatlink{http://some.video.com/fun.mov} +\caption{\label{vid:interest}This is a video +of something fun.} +\end{video} +\end{verbatim} +There is also a corresponding \cmd\listofvideos\ command. + +\section{Tables}\label{sec:tables} + +Tables are very similar to figures. They should be input using the +\env{table} environment as detailed below, and +\LaTeX\ will label and number the captions TABLE~1, TABLE~2, etc. +(or in whatever format required by the chosen journal +substyle). Tables without captions won't be numbered. + +Each table must begin with \envb{table}, end with \enve{table}. A +caption can be specified using the \cmd\caption\marg{text} command. +Captions less than one line long are centered under the figure, +otherwise they span the width of the figure. +To refer to the table via cross-referencing, a \cmd\label\marg{key} +command should appear within the \cmd{\caption}. Use the +\cmd\ref\marg{key} command to cite tables in text. The \env{table} +environment will set the table to the width of the column. Thus, in +two-column mode, the table will be confined to a single column. To set a +table to the full width of the page, rather than the column, use the +\env{table*} environment. + +The heart of the table is the +\env{tabular} environment. This will behave for the most part as in +standard \LaTeXe\ (please refer to Section~3.6.3 and Appendix~C.10.2 of the +\LUG{} for more details about the \env{tabular} environment). +Note that \revtex~4.2 no longer automatically adds double (Scotch) rules +around tables. Nor does the \env{tabular} environment set various +table parameters for column spacing as before. Instead, a new +environment \env{ruledtabular} provides this functionality. This +environment should surround the \env{tabular} environment: +\begin{verbatim} +\begin{table} +\caption{\label{<key>}....} +\begin{ruledtabular} +\begin{tabular} +... +\end{tabular} +\end{ruledtabular} +\end{table} +\end{verbatim} + +A basic table looks as follows: +\begin{verbatim} +\begin{table} +\caption{\label{tab:ex}Text of table caption.} +\begin{ruledtabular} +\begin{tabular}{ll} + Heading 1 & Heading 2\\ + Cell 1 & Cell 2\\ +\end{tabular} +\end{ruledtabular} +\end{table} +\end{verbatim} + +The \env{quasitable} environment is no longer in \revtex~4.2. The +standard \env{tabular} environment can be used instead because it +no longer puts in the double rules. + +\subsection{Aligning on a decimal point} +Numerical columns should align on the decimal point (or +decimal points if more than one is is present). This is accomplished +by again using a standard \LaTeXe\ package, \classname{dcolumn} which +must be loaded in the manuscript's preamble: +\begin{verbatim} +\usepackage{dcolumn} +\end{verbatim} +Once this package is loaded, the column specifier `\texttt{d}' can be +used in the table's \env{tabular}\marg{preamble} enviroment preamble. +The `\texttt{d}' should be used for simple numeric data with a single +decimal point. +% +The entry of a \texttt{d} column is typeset in math mode; do not +insert any \verb+$+ math delimiters into a `\texttt{d}' column. Items +without a decimal point are simply set in math mode, centered. If +text is required in the column, use \cmd\text\ or \cmd\mbox\ as +appropriate. If multiple decimal points are present then the last is +used for alignment. To escape from the `\texttt{d}' column use +\cmd\multicolumn\ as usual. See the sample file \file{apssamp.tex} for examples. + +\subsection{Footnotes in Tables}\label{sec:tablenote} + +Footnotes in a table are labeled \emph{a}, \emph{b}, \emph{c}, +etc. They can be specified by using the \LaTeX\ \cmd\footnote\ +command. Furthermore, +\cmd\footnotemark\ and \cmd\footnotetext\ can be used so that multiple entries +can to refer to the same footnote. The footnotes for a table are typeset +at the bottom of the table, rather than at the bottom of the page or +at the end of the references. The arguments for \cmd\footnotemark\ and +\cmd\footnotetext\ should be numbers 1, 2, \dots. The journal style +will convert these to letters. See sample file \file{apssamp.tex} for +examples and explanations of use. + +\subsection{Dealing with Long Tables} +By default, tables are set in a smaller size than the text body +(\cmd\small). The \cmd\squeezetable\ declaration makes the table font +smaller still (\cmd\scriptsize). Thus, putting the +\cmd\squeezetable\ command before the \envb{table} line in a table +will reduce the font size. If this isn't sufficient to fit +the table on a page, the standard \LaTeXe\ \classname{longtable} +package may be used. The scope of the +\cmd\squeezetable\ command must be limited by enclosing it with a group: +\begin{verbatim} +\begingroup +\squeezetable +\begin{table} +[...] +\end{table} +\endgroup +\end{verbatim} + +Tables are normally set to the width of the column in +which they are placed. This means that in two-column mode, the table +will be placed in a single, narrow column. For wide tables, the +\cmd\table\verb+*+ environment should be used +instead. This will place the table across both columns (the table +usually will +appear either at the top or the bottom of the following page). + + +To break tables across pages, \revtex~4.2 requires adding to the +table a float placement option of [H] (meaning put the table ``here'' +and effectively ``unfloating'' the table) to the \envb{table} +command. The commands \verb+\\*+ and \cmd{\samepage} can be used to +control where the page breaks occur (these are the same as for the +\env{eqnarray} environment). + +Long tables are more robustly handled by using the +\classname{longtable.sty} package included with the standard \LaTeXe\ +distribution (put \verb+\usepackage{longtable}+ in the preamble). This +package gives precise control over the layout of the table. +The \revtex~4.2 package contains patches that enable the +\classname{longtable} package to work in two-column mode. Of course, a +table set in two-column mode needs to be narrow enough to fit within +the column. Otherwise, the columns may overlap. \revtex~4.2 provides +an additional environment \env{longtable*} which allows a longtable to +span the whole page width. Currently, the \env{longtable*} and +\env{ruledtabular} environments are incompatible. In order to get the +double (Scotch) rule, it is necessary to add the \verb+\hline\hline+ +manually (or define \verb+\endfirsthead+ and \verb+\endlastfoot+ +appropriately). For more documentation on the \env{longtable} +environment and on the package options of the +\classname{longtable} package, please see the documentation available at +\url{http://www.ctan.org/macros/latex/required/tools/longtable.dtx} or +refer to \cite{Compan}. + +\section{Placement of Figures, Tables, and Other Floats} +\label{sec:place} + +By default, figures and tables (and any other ``floating'' environments +defined by other packages) float to the top or bottom of the page +using the standard \LaTeX\ float placement mechanism. Initially, each +\env{figure} or \env{table} environment should be put immediately +following its first reference in the text; this will usually result in +satisfactory placement on the page. An optional argument for either +environment adjusts the float placement. For example: +\begin{quote} +\envb{figure}\oarg{placement}\\ +\dots\\ +\enve{figure} +\end{quote} +where \meta{placement} can be any combination of \verb|htbp!|, signifying +``here'', ``top'', ``bottom'', ``page'', and ``as soon as possible'', +respectively. The same placement argument may be added to a +\envb{table}. For more details about float placement, +see the instructions in the \LUG, Appendix~C.9.1. + +In two-column mode, a page may contain both a \env{widetext} +environment and a float. \revtex~4.2 may not always be able to +automatically put the float in the optimal place. For instance, a +float may be placed at the bottom of a column just before the +\env{widetext} begins. To workaround this, try moving the float +environment below the \env{widetext} environment. Alternative +\meta{placements} may also alleviate the problem. + +\env{figure} and \env{table} environments should not +be enclosed in a \env{widetext} environment to make them span +the page to accommodate wide figures or tables. Rather, the +\env{figure*} or \env{table*} environments should be used instead. + +Sometimes in \LaTeX\ the float placement mechanism breaks down and a +float can't be placed. Such a ``stuck'' float may mean that it and all +floats that follow are moved to the end of the job (and if there are +too many of floats, the fatal error \texttt{Too many unprocessed floats} +will occur). \revtex~4.2 provides the class option +\classoption{floatfix} which attempts to invoke emergency float +processing to avoid creating a ``stuck'' float. \revtex~4.2 will provide +a message suggesting the use of +\classoption{floatfix}. If \classoption{floatfix} doesn't work or if +the resulting positioning of the float is poor, the float should be +repositioned by hand. + +\revtex~4.2 offers an additional possibility for placing the floats. By +using the either the \classoption{endfloats} or the +\classoption{endfloats*} class option all floats may be held +back (using an external file) and then set elsewhere in the document +using the the commands \cmd\printtables\ and \cmd\printfigures{}, +placed where the tables and figures are to be printed (usually at the +end of the document). (This is similar to the standard +\cmd\printindex\ command). Using a \texttt{*}-form of the commands +(\cmd\printfigures\verb+*+ and +\cmd\printtables\verb+*+) will begin the figures +or tables on a new page. Alternatively, the option +\classoption{endfloats*} may be used to change the behavior of the +non-\texttt{*}-forms so that every float will appear on a separate +page at the end. + +Without one of the \classoption{endfloats} class options, these float +placement commands are silently ignored, so it is always safe to use +them. If one of the \classoption{endfloats} class options is given, +but the \cmd\printtables\ command is missing, the tables will be +printed at the end of the document. Likewise, if \cmd\printfigures\ is +missing, the figures will be printed at the end of the document. +Therefore it is also safe to omit these commands as long as \revtex's +default choices for ordering figures and tables are satisfactory. + +The \classoption{endfloats} option (or perhaps some journal substyle +that invokes it), requires explicit \envb{figure}, \enve{figure}, +\envb{table}, and \enve{table} lines. In particular, do \emph{not} +define typing shortcuts for table and figure environments, such as +\begin{verbatim} +\def\bt{\begin{table}}% Incompatible! +\def\et{\end{table}}% +\end{verbatim} + +Please note that it is generally undesirable to have all floats moved +to the end of the manuscript. APS no longer requires this for +submissions. In fact, the editors and referees will have an easier time +reading the paper if the floats are set in their normal positions. + +\section{Rotating Floats} + +Often a figure or table is too wide to be typeset in the standard +orientation and it is necessary to rotate the float 90 +degrees. \revtex~4.2 provides a new environment \env{turnpage} as an +easy means to accomplish this. The \env{turnpage} environment depends +on one of the packages \classname{graphics} or \classname{graphicx} +being loaded. To use the \env{turnpage} environment, simply enclose +the \env{figure} or \env{table} environment with the \env{turnpage} +environment: +\begin{verbatim} +\documentclass[...]{revtex4-2} +\usepackage{graphicx} +[...] +\begin{turnpage} +\begin{figure} or \begin{table} +[...] +\end{figure} or \end{table} +\end{turnpage} +\end{verbatim} +A turnpage float will be typeset on a page by itself. Currently, there +is no mechanism for breaking such a float across multiple pages. + +\section{\revtex~4.2 symbols and the \classname{revsymb4-2} package} + +Symbols made available in earlier versions of \revtex\ are +defined in a separate package, \classname{revsymb4-2}, +so that they may be used with other classes. +This might be useful if, say, copying text from a \revtex\ document to +a non-\revtex\ document. \revtex~4.2 automatically includes these +symbols so it is not necessary to explicitly call them in with a +\cmd\usepackage\ statement. + +Table~\ref{tab:revsymb} summarizes the symbols defined in this package. +Note that \cmd{\overcirc}, \cmd{\overdots}, and \cmd{\corresponds} are +no longer in \revtex~4.2. Use \cmd{\mathring} (standard in \LaTeXe), +\cmd{\dddot} (with the \classoption{amsmath} package loaded), and +\cmd\triangleq\ (with the \classoption{amssymb} class option) respectively. +\cmd{\succsim}, \cmd{\precsim}, \cmd{\lesssim}, and \cmd{\gtrsim} are +also defined either in \classname{amsmath} or \classname{amssymb}. The +AMS versions of these commands will be used if the appropriate AMS +package is loaded. + +\begin{table} +\caption{\label{tab:revsymb}Special \revtex~4.2 symbols, accents, and +boldfaced parentheses defined in \file{revsymb.sty}} +\begin{ruledtabular} +\begin{tabular}{ll|ll} +\cmd\lambdabar & $\lambdabar$ &\cmd\openone & $\openone$\\ +\cmd\altsuccsim & $\altsuccsim$ & \cmd\altprecsim & $\altprecsim$ \\ +\cmd\alt & $\alt$ & \cmd\agt & $\agt$ \\ +\cmd\tensor\ x & $\tensor x$ & \cmd\overstar\ x & $\overstar x$ \\ +\cmd\loarrow\ x & $\loarrow x$ & \cmd\roarrow\ x & $\roarrow x$ \\ +\cmd\biglb\ ( \cmd\bigrb ) & $\biglb( \bigrb)$ & +\cmd\Biglb\ ( \cmd\Bigrb )& $\Biglb( \Bigrb)$ \\ +& & \\ +\cmd\bigglb\ ( \cmd\biggrb ) & $\bigglb( \biggrb)$ & +\cmd\Bigglb\ ( \cmd\Biggrb\ ) & $\Bigglb( \Biggrb)$ \\ +\end{tabular} +\end{ruledtabular} +\end{table} + +\section{Other \revtex~4.2 Features} +%\subsection{Hooks} +%To be written.... + +\subsection{Job-specific Override Files} +\revtex~4.2 allows manuscript-specific macro definitions to be put +in a file separate from the main \TeX\ file. One merely creates a file +with the same basename as the \TeX\ file, but with the extension +`.rty'. Thus, if the \TeX\ file is names man.tex, the macro +definitions would go in man.rty. Note that the .rty file should be in +the same directory as the \TeX\ file. APS authors should follow the +guidelines in the \textit{APS Author Guide for \revtex~4.2} when +submitting. Similarly, AIP authors should refer to the \textit{Author's Guide to AIP Substyles for \revtex~4.2} + + +\begin{thebibliography}{}\label{sec:TeXbooks} +\bibitem[Knuth(1986)]{TeXbook} D.E. Knuth, \emph{The \TeX book}, +(Addison-Wesley, Reading, MA, 1986). +\bibitem[Lamport(1996)]{LaTeXman} L. Lamport, \emph{\LaTeX, a Document +Preparation System}, (Addison-Wesley, Reading, MA, 1996). +\bibitem[Kopka(1995)]{Guide} H. Kopka and P. Daly, \emph{A Guide to +\LaTeXe}, (Addison-Wesley, Reading, MA, 1995). +\bibitem[Goossens(1994)]{Compan} M. Goossens, F. Mittelbach, and +A. Samarin, \emph{The \LaTeX\ +Companion}, (Addison-Wesley, Reading, MA, 1994). +\bibitem[Goossens(1997)]{CompanG} M. Goossens, S. Rahtz, and +F. Mittelbach, \emph{The +\LaTeX\ Graphics Companion}, (Addison-Wesley, Reading, MA, 1997). +\bibitem[Rahtz(1999)]{CompanW} S. Rahtz, M. Goossens, \emph{et +al.},\emph{The \LaTeX\ Web Companion}, (Addison-Wesley, Reading, MA, 1999). +\end{thebibliography} + +\end{document} + |