% 
% File:	  test15.qasm
% Date:	  24-Mar-04
% Author: I. Chuang <ichuang@mit.edu>
%
% Sample qasm input file - "D-type" measurement
% requested by Nielsen
% 
% 	def	MeasZ,0,'\dmeterwide{HZ_\theta}{18pt}'
% 
% 	qubit	q0,\psi
% 	qubit	q1,+
% 
% 	nop	q0
% 	ZZ	q0,q1
% 	nop	q0
% 	MeasZ	q0

%  Time 01:
%    Gate 00 nop(q0)
%  Time 02:
%    Gate 01 ZZ(q0,q1)
%  Time 03:
%    Gate 02 nop(q0)
%  Time 04:
%    Gate 03 MeasZ(q0)

% Qubit circuit matrix:
%
% q0: gAA, gBA, gCA, gDA, N  
% q1: n  , gBB, n  , n  , n  

\documentclass[11pt]{article}
\input{xyqcirc.tex}

% definitions for the circuit elements

\def\gAA{*-{}\w\A{gAA}}
\def\gBA{\b\w\A{gBA}}
\def\gBB{\b\w\A{gBB}}
\def\gCA{*-{}\w\A{gCA}}
\def\gDA{\dmeterwide{HZ_\theta}{18pt}\w\A{gDA}}

% definitions for bit labels and initial states

\def\bA{\qv{q_{0}}{\psi}}
\def\bB{\qv{q_{1}}{+}}

% The quantum circuit as an xymatrix

\xymatrix@R=5pt@C=10pt{
    \bA & \gAA &\gBA &\gCA &\gDA &\N  
\\  \bB & \n   &\gBB &\n   &\n   &\n  
%
% Vertical lines and other post-xymatrix latex
%
\ar@{-}"gBA";"gBB"
}

\end{document}