%This is the quantikz library for typesetting quantum circuits using LaTeX/Tikz. version 0.9.1 %Written by Alastair Kay, 2018. Published under a CC-BY-4.0 licence % Please email me with any bug reports or feature requests. %If you find this library useful, please cite its usage in your work,using the DOI: 10.17637/rh.7000520. % Usage is at your own risk. %version 0.9.2: % made 'wires' the default key, so [wires=2] now becomes [2] % added 'slice title', 'slices style', 'slices label style' key to control titles of slices under 'slice all' % better access to positioning of gategroup label. % now arXiv compatible (that was a challenge! they use old versions of packages) %Previous versions: %version 0.9.1: % added \cwbend gate for cornering classical wires. % made size of strike through for multiqubit gates stylable via the keys /quantikz/Strike Height/ and /quantikz/Strike Width/ % added new \gate[swap] variant of swap (nearest-neighbour only). %version 0.9.0: %original release. % Package(s) to include \RequirePackage{xargs,ifthen,xstring,xparse,etoolbox} \RequirePackage{tikz} %\RequirePackage{pgffor,pgfmath} \usetikzlibrary{cd,decorations.pathreplacing,calc,positioning,fit,shapes.symbols,decorations.pathmorphing,shapes.misc,backgrounds,decorations.markings} \makeatletter \newcounter{aaa} \tikzset{ apply/.style args={#1 except on segments #2}{postaction={ /utils/exec={ \@for\mattempa:=#2\do{\csdef{aaa@\mattempa}{}} \setcounter{aaa}{0} }, decorate,decoration={show path construction, moveto code={}, lineto code={ \stepcounter{aaa} \ifcsdef{aaa@\theaaa}{}{ \path[#1] (\tikzinputsegmentfirst) -- (\tikzinputsegmentlast); } }, curveto code={ \stepcounter{aaa} \ifcsdef{aaa@\theaaa}{}{ \path [#1] (\tikzinputsegmentfirst) .. controls (\tikzinputsegmentsupporta) and (\tikzinputsegmentsupportb) ..(\tikzinputsegmentlast); } }, closepath code={ \stepcounter{aaa} \ifcsdef{aaa@\theaaa}{}{ \path [#1] (\tikzinputsegmentfirst) -- (\tikzinputsegmentlast); } }, }, }, }, } \long\def\ifnodedefined#1#2#3{% \@ifundefined{pgf@sh@ns@#1}{#3}{#2}% } %the main gate command \newcommand\gate[2][]{%optional parameter contains styling info. compulsory is gate text. \def\toswap{0} \edef\options{row=\the\pgfmatrixcurrentrow,col=\the\pgfmatrixcurrentcolumn,#1} \pgfkeys{/quantikz,wires=1,style=,label style=,braces=} \pgfkeys{/quantikz,#1}% \pgfkeysgetvalue{/quantikz/wires}{\quantwires} \pgfkeysgetvalue{/quantikz/style}{\a} \pgfkeysgetvalue{/quantikz/label style}{\b} \edef\n{\the\pgfmatrixcurrentrow} \edef\m{\the\pgfmatrixcurrentcolumn} \ifthenelse{\toswap=1}{\def\quantwires{2}\phantom{wide}}{\phantom{#2}} \edef\k{\the\numexpr\n+\quantwires-1\relax} \foreach \i in {\n,...,\k} { \edef\from{\i-\m} \edef\to{\i-\the\numexpr\m-1\relax} \expandafter\expandafter\expandafter\vqwexplicit\expandafter\expandafter\expandafter{\expandafter\from\expandafter}\expandafter{\to} } \expandafter\expandafter\expandafter\expandafter\expandafter\expandafter\expandafter\pgfutil@g@addto@macro\expandafter\expandafter\expandafter\expandafter\expandafter\expandafter\expandafter\tikzcd@atendsavedpaths\expandafter\expandafter\expandafter\expandafter\expandafter\expandafter\expandafter{% \expandafter\expandafter\expandafter\expandafter\expandafter\expandafter\expandafter\gate@end\expandafter\expandafter\expandafter\expandafter\expandafter\expandafter\expandafter{\expandafter\expandafter\expandafter\a\expandafter\expandafter\expandafter}\expandafter\expandafter\expandafter{\expandafter\b\expandafter}\expandafter{\options}{#2} } } %deferred gate command \newcommand{\gate@end}[4]{ \pgfkeys{/quantikz,wires=1} \def\toswap{0} \pgfkeys{/quantikz,#3}% \pgfkeysgetvalue{/quantikz/wires}{\quantwires} \pgfkeysgetvalue{/quantikz/row}{\row} \pgfkeysgetvalue{/quantikz/col}{\col} \ifthenelse{\toswap=1}{\def\quantwires{2}}{} \xdef\LoopGG{} \foreach \n in {\row,...,\the\numexpr\row+\quantwires-1\relax} { \ifnodedefined{\tikzcdmatrixname-\n-\col}{ \xdef\LoopGG{\LoopGG(\tikzcdmatrixname-\n-\col)} }{} } \ifthenelse{\toswap=1}{ \node (group\tikzcdmatrixname-\row-\col) [fit=\LoopGG,operator,inner xsep=3pt,inner ysep=5pt,#1] {\hphantom{wide}}; \draw [thick] (group\tikzcdmatrixname-\row-\col.west|-\tikzcdmatrixname-\row-\col.center) to[out=0,in=180] (group\tikzcdmatrixname-\row-\col.east|-\tikzcdmatrixname-\the\numexpr\row+1\relax-\col.center); \draw [line width=3pt,white,shorten >=0.9pt,shorten <=0.9pt] (group\tikzcdmatrixname-\row-\col.east|-\tikzcdmatrixname-\row-\col.center) to[out=180,in=0] (group\tikzcdmatrixname-\row-\col.west|-\tikzcdmatrixname-\the\numexpr\row+1\relax-\col.center); \draw [thick] (group\tikzcdmatrixname-\row-\col.east|-\tikzcdmatrixname-\row-\col.center) to[out=180,in=0] (group\tikzcdmatrixname-\row-\col.west|-\tikzcdmatrixname-\the\numexpr\row+1\relax-\col.center); }{ \node (group\tikzcdmatrixname-\row-\col) [fit=\LoopGG,operator,inner xsep=3pt,inner ysep=5pt,label={[gg label,#2]$#4$},#1] {\hphantom{$#4$}}; } } %single slice \newcommand\slice[2][]{% %\edef\currcol{\the\pgfmatrixcurrentcolumn} \pgfkeys{/quantikz,wires=1,style=,label style=,braces=} \pgfkeys{/quantikz,#1}% \edef\options{\pgfkeysvalueof{/quantikz/style}} \edef\opts{\pgfkeysvalueof{/quantikz/label style}} \edef\n{\the\pgfmatrixcurrentcolumn} %\expandafter\show\n \expandafter\expandafter\expandafter\expandafter\expandafter\expandafter\expandafter\pgfutil@g@addto@macro\expandafter\expandafter\expandafter\expandafter\expandafter\expandafter\expandafter\tikzcd@atendslices\expandafter\expandafter\expandafter\expandafter\expandafter\expandafter\expandafter{% \expandafter\expandafter\expandafter\expandafter\expandafter\expandafter\expandafter\slice@end\expandafter\expandafter\expandafter\expandafter\expandafter\expandafter\expandafter{\expandafter\expandafter\expandafter\n\expandafter\expandafter\expandafter}\expandafter\expandafter\expandafter{\expandafter\options\expandafter}\expandafter{\opts}{#2}% }} %deferred slice command \newcommand{\slice@end}[4]{ \edef\top{($1/2*(\tikzcdmatrixname-col#1.east |- \tikzcdmatrixname-row1.north)+1/2*(\tikzcdmatrixname-col\the\numexpr#1+1\relax.west |- \tikzcdmatrixname-row1.north)$)} \edef\bottom{($1/2*(\tikzcdmatrixname-col#1.east |- \tikzcdmatrixname-row\the\pgfmatrixcurrentrow.south)+1/2*(\tikzcdmatrixname-col\the\numexpr#1+1\relax.west |- \tikzcdmatrixname-row\the\pgfmatrixcurrentrow.south)+(0,-3pt)$)} \expandafter\expandafter\expandafter\make@slice\expandafter\expandafter\expandafter{\expandafter\top\expandafter}\expandafter{\bottom}{#4}{#2}{#3} } \newcommand{\make@slice}[5]{ \draw[slice,#4] #1 to node[pos=0,inner sep=4pt,anchor=south,color=black,#5] {#3} #2; } %deferred command which will slice everything \newcommand{\sliceallr}{ \foreach \n in {2,...,\the\numexpr\pgfmatrixcurrentcolumn-1-\pgfkeysvalueof{/tikz/remove end slices}\relax} { \edef\col{\the\numexpr\n-1\relax} \edef\title{\pgfkeysvalueof{/tikz/slice titles}} \edef\sstyle{\pgfkeysvalueof{/tikz/slice style}} \edef\slstyle{\pgfkeysvalueof{/tikz/slice label style}} \expandafter\expandafter\expandafter\expandafter\expandafter\expandafter\expandafter\slice@end\expandafter\expandafter\expandafter\expandafter\expandafter\expandafter\expandafter{\expandafter\expandafter\expandafter\n\expandafter\expandafter\expandafter}\expandafter\expandafter\expandafter{\expandafter\sstyle\expandafter}\expandafter{\slstyle}{\title} } } %labelling of inputs \newcommand\lstick[2][]{% \pgfkeys{/quantikz,wires=1,style=,label style=,braces=} \pgfkeys{/quantikz,#1}% \edef\newoptions{row=\the\pgfmatrixcurrentrow,col=\the\pgfmatrixcurrentcolumn,#1} \pgfkeysgetvalue{/quantikz/label style}{\options} \pgfkeysgetvalue{/quantikz/braces}{\opts} %\edef\n{\the\pgfmatrixcurrentrow} %\edef\m{\the\pgfmatrixcurrentcolumn} \expandafter\expandafter\expandafter\expandafter\expandafter\expandafter\expandafter\pgfutil@g@addto@macro\expandafter\expandafter\expandafter\expandafter\expandafter\expandafter\expandafter\tikzcd@atendsavedpaths\expandafter\expandafter\expandafter\expandafter\expandafter\expandafter\expandafter{% \expandafter\expandafter\expandafter\expandafter\expandafter\expandafter\expandafter\groupinput@end\expandafter\expandafter\expandafter\expandafter\expandafter\expandafter\expandafter{\expandafter\expandafter\expandafter\newoptions\expandafter\expandafter\expandafter}\expandafter\expandafter\expandafter{\expandafter\options\expandafter}\expandafter{\opts}{#2}% } } %labelling of outputs \newcommand\rstick[2][]{% \pgfkeys{/quantikz,wires=1,style=,label style=,braces=} \pgfkeys{/quantikz,#1}% \edef\newoptions{row=\the\pgfmatrixcurrentrow,col=\the\pgfmatrixcurrentcolumn,#1} \pgfkeysgetvalue{/quantikz/label style}{\options} \pgfkeysgetvalue{/quantikz/braces}{\opts} %\edef\n{\the\pgfmatrixcurrentrow} %\edef\m{\the\pgfmatrixcurrentcolumn} \expandafter\expandafter\expandafter\expandafter\expandafter\expandafter\expandafter\pgfutil@g@addto@macro\expandafter\expandafter\expandafter\expandafter\expandafter\expandafter\expandafter\tikzcd@atendsavedpaths\expandafter\expandafter\expandafter\expandafter\expandafter\expandafter\expandafter{% \expandafter\expandafter\expandafter\expandafter\expandafter\expandafter\expandafter\groupoutput@end\expandafter\expandafter\expandafter\expandafter\expandafter\expandafter\expandafter{\expandafter\expandafter\expandafter\newoptions\expandafter\expandafter\expandafter}\expandafter\expandafter\expandafter{\expandafter\options\expandafter}\expandafter{\opts}{#2}% } } %deferred labelling of inputs \newcommand{\groupinput@end}[4]{%basic data as keys, lable options, brace options, text \pgfkeys{/quantikz,wires=1} \pgfkeys{/quantikz,#1}% \pgfkeysgetvalue{/quantikz/wires}{\quantwires} \pgfkeysgetvalue{/quantikz/row}{\row} \pgfkeysgetvalue{/quantikz/col}{\col} \xdef\LoopGI{} \foreach \n in {\row,...,\the\numexpr\row+\quantwires-1\relax} { \ifnodedefined{\tikzcdmatrixname-\n-\col}{ \xdef\LoopGI{\LoopGI(\tikzcdmatrixname-\n-\col)} }{} } \ifthenelse{\quantwires=1} { \node (ingr-\row) [fit=\LoopGI, inner sep=0pt,label={[align=center,#2]left:#4}] {}; }{ \node (ingr-\row) [fit=\LoopGI, inner sep=0pt] {}; \draw[dm,#3] ($(ingr-\row.north west)+(-0.1cm,0.1cm)$) to node[midway,align=center,anchor=east,xshift=-0.1cm,#2] {#4} ($(ingr-\row.south west)+(-0.1cm,-0.1cm)$); } } % %deferred labelling of outputs \newcommand{\groupoutput@end}[4]{%basic data as keys, lable options, brace options, text \pgfkeys{/quantikz,wires=1} \pgfkeys{/quantikz,#1}% \pgfkeysgetvalue{/quantikz/wires}{\quantwires} \pgfkeysgetvalue{/quantikz/row}{\row} \pgfkeysgetvalue{/quantikz/col}{\col} \xdef\LoopGO{} \foreach \n in {\row,...,\the\numexpr\row+\quantwires-1\relax} { \ifnodedefined{\tikzcdmatrixname-\n-\col}{ \xdef\LoopGO{\LoopGO(\tikzcdmatrixname-\n-\col)} }} \ifthenelse{\quantwires=1} { \node (outgr-\row) [fit=\LoopGO, inner sep=0pt,label={[align=center,#2]right:#4}] {}; }{ \node (outgr-\row) [fit=\LoopGO, inner sep=0pt] {}; \draw[dd,#3] ($(outgr-\row.north east)+(0.1cm,0.1cm)$) to node[midway,align=center,anchor=west,xshift=0.1cm,#2] {#4} ($(outgr-\row.south east)+(0.1cm,-0.1cm)$); } } % %inputs and outputs within a multi-wire gate \newcommand\gateinput[2][]{% \pgfkeys{/quantikz,wires=1,style=,label style=,braces=}% \pgfkeys{/quantikz,#1}% \edef\newoptions{row=\the\pgfmatrixcurrentrow,col=\the\pgfmatrixcurrentcolumn,#1} \pgfkeysgetvalue{/quantikz/label style}{\options} \pgfkeysgetvalue{/quantikz/braces}{\opts}% \expandafter\expandafter\expandafter\expandafter\expandafter\expandafter\expandafter\pgfutil@g@addto@macro\expandafter\expandafter\expandafter\expandafter\expandafter\expandafter\expandafter\tikzcd@atendlabels\expandafter\expandafter\expandafter\expandafter\expandafter\expandafter\expandafter{% \expandafter\expandafter\expandafter\expandafter\expandafter\expandafter\expandafter\mginput@end\expandafter\expandafter\expandafter\expandafter\expandafter\expandafter\expandafter{\expandafter\expandafter\expandafter\newoptions\expandafter\expandafter\expandafter}\expandafter\expandafter\expandafter{\expandafter\options\expandafter}\expandafter{\opts}{#2}% } } \newcommand\gateoutput[2][]{% \pgfkeys{/quantikz,wires=1,style=,label style=,braces=} \pgfkeys{/quantikz,#1}% \edef\newoptions{row=\the\pgfmatrixcurrentrow,col=\the\pgfmatrixcurrentcolumn,#1} \pgfkeysgetvalue{/quantikz/label style}{\options} \pgfkeysgetvalue{/quantikz/braces}{\opts} \expandafter\expandafter\expandafter\expandafter\expandafter\expandafter\expandafter\pgfutil@g@addto@macro\expandafter\expandafter\expandafter\expandafter\expandafter\expandafter\expandafter\tikzcd@atendlabels\expandafter\expandafter\expandafter\expandafter\expandafter\expandafter\expandafter{% \expandafter\expandafter\expandafter\expandafter\expandafter\expandafter\expandafter\mgoutput@end\expandafter\expandafter\expandafter\expandafter\expandafter\expandafter\expandafter{\expandafter\expandafter\expandafter\newoptions\expandafter\expandafter\expandafter}\expandafter\expandafter\expandafter{\expandafter\options\expandafter}\expandafter{\opts}{#2}% } } %deferred functions for the above \newcommand{\mginput@end}[4]{%collected options,label style, brace style,text \pgfkeys{/quantikz,wires=1} \pgfkeys{/quantikz,#1}% \edef\quantwires{\pgfkeysvalueof{/quantikz/wires}} %\pgfkeysgetvalue{/quantikz/wires}{\quantwires} \pgfkeysgetvalue{/quantikz/row}{\row} \pgfkeysgetvalue{/quantikz/col}{\col} %can we find the gategroup node? \xdef\cell{group\tikzcdmatrixname-1-\col} \foreach \n in {\row,...,1} {% %test if node group-\n-#2 exists \ifnodedefined{group\tikzcdmatrixname-\n-\col}{% \xdef\cell{group\tikzcdmatrixname-\n-\col} \breakforeach }{} } \ifthenelse{\quantwires=1}{% \node at ($(\cell.west |- \tikzcdmatrixname-\row-\col.west)+(0,0cm)$)[leftinternal,#2]{#4}; }{% %\show\quantwires \draw[dd,#3] ($(\cell.west |- \tikzcdmatrixname-\row-\col.west)+(0.1cm,0.1cm)$) to node[leftinternal,midway,#2] {#4} ($(\cell.west |- \tikzcdmatrixname-\the\numexpr\row+\quantwires-1\relax-\col.west)+(0.1cm,-0.1cm)$); } } % \newcommand{\mgoutput@end}[4]{% \pgfkeys{/quantikz,wires=1} \pgfkeys{/quantikz,#1}% \edef\quantwires{\pgfkeysvalueof{/quantikz/wires}} %\pgfkeysgetvalue{/quantikz/wires}{\quantwires} \pgfkeysgetvalue{/quantikz/row}{\row} \pgfkeysgetvalue{/quantikz/col}{\col} %can we find the gategroup node? \xdef\cell{group\tikzcdmatrixname-1-\col} \foreach \n in {\row,...,1} {% %test if node group-\n-#2 exists \ifnodedefined{group\tikzcdmatrixname-\n-\col}{% \xdef\cell{group\tikzcdmatrixname-\n-\col} \breakforeach }{} } \ifthenelse{\quantwires=1}{% \node at ($(\cell.east |- \tikzcdmatrixname-\row-\col.east)+(0,0cm)$)[rightinternal,#2]{#4}; }{% \draw[dm,#3] ($(\cell.east |- \tikzcdmatrixname-\row-\col.east)+(-0.1cm,0.1cm)$) to node[rightinternal,midway,#2] {#4} ($(\cell.east |- \tikzcdmatrixname-\the\numexpr\row+\quantwires-1\relax-\col.east)+(-0.1cm,-0.1cm)$); } } % %wave command \newcommand\wave[1][]{% \edef\n{\the\pgfmatrixcurrentrow} \expandafter\pgfutil@g@addto@macro\expandafter\tikzcd@atendslices\expandafter{% \expandafter\wave@end\expandafter{\n}{#1}% } } %deferred wave \newcommand{\wave@end}[2]{ \node (wave-#1) [fit=(\tikzcdmatrixname-row#1),wave,#2] {}; } \newcommand\gategroup[2][]{% \pgfkeys{/quantikz,wires=1,style=,label style=,braces=} \pgfkeys{/quantikz,#1}% \edef\newoptions{row=\the\pgfmatrixcurrentrow,col=\the\pgfmatrixcurrentcolumn,#1} \pgfkeysgetvalue{/quantikz/style}{\options} \pgfkeysgetvalue{/quantikz/label style}{\opts} \expandafter\expandafter\expandafter\expandafter\expandafter\expandafter\expandafter\pgfutil@g@addto@macro\expandafter\expandafter\expandafter\expandafter\expandafter\expandafter\expandafter\tikzcd@atendlabels\expandafter\expandafter\expandafter\expandafter\expandafter\expandafter\expandafter{% \expandafter\expandafter\expandafter\expandafter\expandafter\expandafter\expandafter\gategroup@end\expandafter\expandafter\expandafter\expandafter\expandafter\expandafter\expandafter{\expandafter\expandafter\expandafter\newoptions\expandafter\expandafter\expandafter}\expandafter\expandafter\expandafter{\expandafter\options\expandafter}\expandafter{\opts}{#2}% } } \newcommand{\gategroup@end}[4]{%options, gate style, text style, text \pgfkeys{/quantikz,wires=1,style=,label style=,braces=,steps=1}% \edef\background{0}% \pgfkeys{/quantikz,#1}% \pgfkeysgetvalue{/quantikz/wires}{\quantwires}% \pgfkeysgetvalue{/quantikz/row}{\row}% \pgfkeysgetvalue{/quantikz/col}{\col}% \pgfkeysgetvalue{/quantikz/steps}{\steps}% \edef\fit{(\tikzcdmatrixname-col\col.west |- \tikzcdmatrixname-row\row.north)(\tikzcdmatrixname-col\the\numexpr\col+\steps-1\relax.east |- \tikzcdmatrixname-row\the\numexpr\row+\quantwires-1\relax.south)}% \ifthenelse{\background=1}{% \begin{scope}[on background layer]\node (ggroup-\row-\col) [fit=\fit,draw,inner sep=4pt,thick,label={[group label,#3]:#4},#2] {};\end{scope} }{% \node (ggroup-\row-\col) [fit=\fit,draw,inner sep=4pt, thick,label={[group label,#3]:#4},#2] {}; } } %use for fudging classical wires that have horizontal and vertical sections \newcommand{\cwbend}[1]{ \vcw{#1}\cw \edef\cell{\the\pgfmatrixcurrentrow-\the\pgfmatrixcurrentcolumn} \expandafter\pgfutil@g@addto@macro\expandafter\tikzcd@atendlabels\expandafter{% \expandafter\latephase@end\expandafter{\cell} } } \newcommand{\latephase@end}[1]{ \node [phase,inner sep=2pt] at (\tikzcdmatrixname-#1) {}; } %patch tikzcd to allow for multiple layers of commands \patchcmd\tikzcd@{\tikzpicture}{\def\toslice{0} \tikzpicture}{}{} \patchcmd\tikzcd@ {\global\let\tikzcd@savedpaths\pgfutil@empty} {\global\let\tikzcd@savedpaths\pgfutil@empty \global\let\tikzcd@atendsavedpaths\pgfutil@empty \global\let\tikzcd@atendlabels\pgfutil@empty \global\let\tikzcd@atendslices\pgfutil@empty \pgfutil@g@addto@macro\tikzcd@savedpaths\DivideRowsCols %\pgfmathsetmacro{\mname}{random(100000)} \ifthenelse{\toslice=1}{\pgfutil@g@addto@macro\tikzcd@atendslices\sliceallr}{} }{}{} %this patching works on modern systems, but I believe is incompatible with the old version that arXiv is running %\patchcmd\endtikzcd{\tikzcd@savedpaths}{\tikzcd@savedpaths\tikzcd@atendsavedpaths\tikzcd@atendlabels\tikzcd@atendslices}{}{} %instead, completely redefine the function \def\endtikzcd{% \pgfmatrixendrow\egroup% \pgfextra{\global\let\tikzcdmatrixname\tikzlastnode};% \tikzcdset{\the\pgfmatrixcurrentrow-row diagram/.try}% \begingroup% \pgfkeys{% `quotes' library support /handlers/first char syntax/the character "/.initial=\tikzcd@forward@quotes,% /tikz/edge quotes mean={% edge node={node [execute at begin node=\iftikzcd@mathmode$\fi,%$ execute at end node=\iftikzcd@mathmode$\fi,%$ /tikz/commutative diagrams/.cd,every label,##2]{##1}}}}% \let\tikzcd@errmessage\errmessage% improve error messages \def\errmessage##1{\tikzcd@errmessage{##1^^J...^^Jl.\tikzcd@lineno\space% I think the culprit is a tikzcd arrow in cell \tikzcd@currentrow-\tikzcd@currentcolumn}}% \tikzcd@before@paths@hook% \tikzcd@savedpaths\tikzcd@atendsavedpaths\tikzcd@atendlabels\tikzcd@atendslices%I just added stuff here instead \endgroup% \endtikzpicture% \ifnum0=`{}\fi} %end patching \makeatother %this command runs after we've finished the matrix, and makes unified cells for each row and each column. This allows much nicer alignment of large boxes. \newcommand{\DivideRowsCols}{ \foreach \n in {1,...,\the\pgfmatrixcurrentrow} {%for each row, construct a master cell that contains all entries \xdef\LoopRow{} \foreach \m in {1,...,\the\pgfmatrixcurrentcolumn}{ \ifnodedefined{\tikzcdmatrixname-\n-\m}{ \xdef\LoopRow{\LoopRow(\tikzcdmatrixname-\n-\m)} }{} \ifnodedefined{group\tikzcdmatrixname-\n-\m}{ \xdef\LoopRow{\LoopRow(group\tikzcdmatrixname-\n-\m)} }{} } \node (\tikzcdmatrixname-row\n) [fit=\LoopRow] {}; } \foreach \n in {1,...,\the\pgfmatrixcurrentcolumn} {%for each column, construct a master cell that contains all entries \xdef\LoopCol{} \foreach \m in {1,...,\the\pgfmatrixcurrentrow}{ \ifnodedefined{\tikzcdmatrixname-\m-\n}{ \xdef\LoopCol{\LoopCol(\tikzcdmatrixname-\m-\n)} }{} \ifnodedefined{group\tikzcdmatrixname-\m-\n}{ \xdef\LoopCol{\LoopCol(group\tikzcdmatrixname-\m-\n)} }{} } \node (\tikzcdmatrixname-col\n) [fit=\LoopCol] {}; } } %initialise all the pgfkeys for key=value parametre passing in macro options \pgfkeys{/tikz/slice all/.code={\def\toslice{1}},/tikz/remove end slices/.initial=0,/tikz/slice titles/.initial={\col},/tikz/slice style/.initial={},/tikz/slice label style/.initial={}} \pgfkeys{/quantikz/.is family,/quantikz,% .unknown/.style={% /quantikz/wires=\pgfkeyscurrentname },% wires/.initial=1,% style/.initial={},label style/.initial={},braces/.initial={},background/.code={\def\background{1}},alternate/.code={\def\helper{1}},row/.initial=1,col/.initial=1,steps/.initial=1,Strike Width/.initial=0.08cm,Strike Height/.initial=0.12cm,swap/.code={\def\toswap{1}}} %\pgfkeys{/quantikz/.unknown/.style={/tikz}} %\pgfkeys{/tikz/background/.style={},/tikz/wires/.style={}} %Define some useful commands \providecommand{\ket}[1]{\ensuremath{\left | #1 \right\rangle}} \providecommand{\bra}[1]{\ensuremath{\left \langle #1 \right |}} \providecommand{\proj}[1]{\ket{#1}\bra{#1}} %single qubit operations \newcommand{\phantomgate}[1]{|[linecont,thick, inner ysep=3pt]| \phantom{#1} \qw} \newcommand{\hphantomgate}[1]{|[linecont,minimum size=1.5em,thick]| \hphantom{#1} \qw} \newcommand{\push}[1]{#1 \qw} \DeclareExpandableDocumentCommand{\phase}{O{}m}{|[phase,label={[phase label]#2},#1]| {} \qw} \DeclareExpandableDocumentCommand{\control}{O{}m}{|[phase,#1]| {} \qw} \DeclareExpandableDocumentCommand{\ocontrol}{O{}m}{|[ophase,#1]| {} \qw} \DeclareExpandableDocumentCommand{\targ}{O{}m}{|[circlewc,#1]| {} \qw} \DeclareExpandableDocumentCommand{\targX}{O{}m}{|[crossx2,#1]| {} \qw} %measuring \DeclareExpandableDocumentCommand{\meter}{O{}{m}}{|[meter,label={[my label]#2},#1]| {} \qw} \DeclareExpandableDocumentCommand{\measuretab}{O{}{m}}{|[measuretab,#1]| {#2} \qw} \DeclareExpandableDocumentCommand{\meterD}{O{}{m}}{|[meterD,#1]| {#2} \qw} \DeclareExpandableDocumentCommand{\measure}{O{}{m}}{|[measure,#1]| {#2} \qw} %controlled gates \def\ctrl#1{\control{} \vqw{#1}} \def\octrl#1{\ocontrol{}\vqw{#1}} \def\swap#1{% \targX{} \edef\start{\the\pgfmatrixcurrentrow-\the\pgfmatrixcurrentcolumn} \edef\end{\the\numexpr#1+\pgfmatrixcurrentrow\relax-\the\pgfmatrixcurrentcolumn} \expandafter\expandafter\expandafter\vqwexplicitcenter\expandafter\expandafter\expandafter{\expandafter\start\expandafter}\expandafter{\end} } %vertical wires %classical vertical wire, relative positioning \newcommand{\vcw}[1]{ \edef\start{\the\pgfmatrixcurrentrow-\the\pgfmatrixcurrentcolumn} \edef\end{\the\numexpr#1+\pgfmatrixcurrentrow\relax-\the\pgfmatrixcurrentcolumn} \expandafter\expandafter\expandafter\vcwexplicit\expandafter\expandafter\expandafter{\expandafter\start\expandafter}\expandafter{\end} } %vertical quantum wire, relative positioning \newcommand{\vqw}[1]{ \edef\start{\the\pgfmatrixcurrentrow-\the\pgfmatrixcurrentcolumn} \edef\end{\the\numexpr#1+\pgfmatrixcurrentrow\relax-\the\pgfmatrixcurrentcolumn} \expandafter\expandafter\expandafter\vqwexplicit\expandafter\expandafter\expandafter{\expandafter\start\expandafter}\expandafter{\end} } %quantum wire, absolute positioning \newcommand{\vqwexplicit}[2]{ \arrow[from=#1,to=#2,dash,thick] {} } \newcommand{\vcwexplicit}[2]{ \arrow[from=#1,to=#2,dash,thick,xshift=0.05cm] {}\arrow[from=#1,to=#2,dash,thick,xshift=-0.05cm] {} } %quantum wire, absolute positioning, going to centres of cell, not edge. \newcommand{\vqwexplicitcenter}[2]{ \arrow[from=#1,to=#2,dash,thick,start anchor=center,end anchor=center] {} } %horizontal wires \newcommand{\qw}{\ifthenelse{\the\pgfmatrixcurrentcolumn>1}{\arrow[dash,thick]{l}}{}} \newcommand{\cw}{\ifthenelse{\the\pgfmatrixcurrentcolumn>1}{\arrow[dash,thick,yshift=0.05cm]{l}\arrow[dash,thick,yshift=-0.05cm]{l}}{}} %define the strike distance for strike-through on qwbundle. %\newcommand*{\StrikeDistance}{0.1cm}% %a bundle of horizontal quantum wires \newcommand{\qwbundle}[1][]{\ifthenelse{\the\pgfmatrixcurrentcolumn>1}{ \def\helper{0} \pgfset{/quantikz,#1} \ifthenelse{\helper=1}{ \arrow[dash,thick,yshift=0.1cm]{l}\arrow[dash,thick]{l}\arrow[dash,thick,yshift=-0.1cm]{l} }{ \arrow[phantom,strike arrow]{l} }}{}} %configure some of the style properties. \tikzcdset{row sep/normal=0.5cm,column sep/normal=0.5cm,thick,nodes in empty cells,every cell/.style={ anchor=center,minimum size=0pt,inner sep=0pt,outer sep=0pt,thick } } \tikzset{ operator/.style={draw,fill=white,minimum size=1.5em, inner xsep=2pt,thick,align=center}, leftinternal/.style={anchor=mid west,font=\scriptsize,inner sep=4pt,align=center}, rightinternal/.style={anchor=mid east,font=\scriptsize,inner sep=4pt,align=center}, wave/.style={inner sep=-3pt,tape,fill=white,apply={draw=black} except on segments {5,6,1,2,9}}, phase/.style={fill,shape=circle,minimum size=4pt}, phase label/.style={label distance=2mm,label position=45,anchor=mid}, ophase/.style={fill=white,draw=black,shape=circle,minimum size=4pt}, line/.style={path picture={ \draw[thick,black](path picture bounding box.west) -- (path picture bounding box.east); }}, linecont/.style={circle,line}, cross/.style={path picture={ \draw[thick,black](path picture bounding box.north) -- (path picture bounding box.south) (path picture bounding box.west) -- (path picture bounding box.east); }}, circlewc/.style={draw,circle,cross,minimum width=4pt,inner sep=3pt}, crossx/.style={path picture={ \draw[thick,black,inner sep=0pt] (path picture bounding box.south east) -- (path picture bounding box.north west) (path picture bounding box.south west) -- (path picture bounding box.north east) (path picture bounding box.west) -- (path picture bounding box.east); }}, crossx2/.style={circle,crossx,minimum size=1em}, dd/.style={decoration={brace},decorate,thick}, dm/.style={decoration={brace,mirror},decorate,thick}, slice/.style={thick,red,dash pattern=on 5pt off 3pt,align=center}, meter/.style={draw,fill=white,minimum width=2em,minimum height=1.5em, rectangle, font=\vphantom{A}, line width=.8, path picture={\draw[black] ([shift={(.1,.24)}]path picture bounding box.south west) to[bend left=50] ([shift={(-.1,.24)}]path picture bounding box.south east);\draw[black,-{Latex[scale=0.6]}] ([shift={(0,.1)}]path picture bounding box.south) -- ([shift={(.3,-.1)}]path picture bounding box.north);}}, measuretab/.style={draw,signal,signal to=west,inner sep=4pt,fill=white}, meterD/.style={draw,rounded rectangle,rounded rectangle left arc=none,inner sep=4pt,fill=white}, measure/.style={draw,rounded rectangle,inner sep=4pt,fill=white}, my label/.style={yshift=0.1cm,above,align=center}, gg label/.style={label position=center,align=center}, group label/.style={label position=above,yshift=0.2cm,anchor=mid}, strike arrow/.style={ decoration={markings, mark=at position 0.5 with { \draw [black, thick,-] ++ (-\pgfkeysvalueof{/quantikz/Strike Width},-\pgfkeysvalueof{/quantikz/Strike Height} ) -- ( \pgfkeysvalueof{/quantikz/Strike Width}, \pgfkeysvalueof{/quantikz/Strike Height});} %can I use pgfkeys and do some maths here? }, postaction={decorate}, } }