\documentclass[border=2px]{standalone}

\usepackage[braket, qm]{qcircuit}
\usepackage{graphicx}

\begin{document}
\scalebox{1.0}{
\Qcircuit @C=1.0em @R=0.8em @!R { \\
	 	\nghost{{q}_{0} :  } & \lstick{{q}_{0} :  } & \ctrl{1} & \dstick{\hspace{2.0em}\mathrm{P}\,(\mathrm{\frac{\pi}{2}})} \qw & \qw & \qw & \qw & \qw\\
	 	\nghost{{q}_{1} :  } & \lstick{{q}_{1} :  } & \control \qw & \qw & \qw & \qw & \qw & \qw\\
	 	\nghost{{c}_{0} :  } & \lstick{{c}_{0} :  } & \cw & \cw & \cw & \cw & \cw & \cw\\
	 	\nghost{{c}_{1} :  } & \lstick{{c}_{1} :  } & \control \cw^(0.0){^{\mathtt{}}} \cwx[-2] & \cw & \cw & \cw & \cw & \cw\\
\\ }}
\end{document}