\documentclass{article}
\usepackage{tikz}
\usepackage{pgfplots}
\begin{document}
\begin{tikzpicture}
\begin{axis}[ytick=\empty]
\plot coordinates {(0,1e-14) (2,3e-14)};
\end{axis}
\end{tikzpicture}
\end{document}
