% 
% File:	  test13.qasm
% Date:	  22-Mar-04
% Author: I. Chuang <ichuang@mit.edu>
%
% Sample qasm input file - three-qubit phase
% estimation circuit with QFT and controlled-U
% 
% 	defbox	CU,3,1,'U'
% 	defbox	CU2,3,1,'U^2'
% 	defbox	CU4,3,1,'U^4'
% 	def	c-S,1,'S'
% 	def	c-T,1,'T'
% 
% 	qubit	j0,0	% QFT qubits
% 	qubit	j1,0
% 	qubit	j2,0
% 	qubit	s0	% U qubits
% 	qubit	s1
% 
% 	h	j0	% equal superposition
% 	h	j1
% 	h	j2
% 
% 	CU4	j0,s0,s1	% controlled-U
% 	CU2	j1,s0,s1
% 	CU	j2,s0,s1
% 
% 	h	j0	% QFT
% 	c-S	j0,j1
% 	h	j1
% 	nop	j0
% 	c-T	j0,j2
% 	c-S	j1,j2
% 	h	j2
% 	nop	j0
% 	nop	j0
% 	nop	j1
% 	
% 	measure	j0	% final measurement
% 	measure	j1	
% 	measure	j2	

%  Time 01:
%    Gate 00 h(j0)
%    Gate 01 h(j1)
%    Gate 02 h(j2)
%  Time 02:
%    Gate 03 CU4(j0,s0,s1)
%  Time 03:
%    Gate 04 CU2(j1,s0,s1)
%    Gate 06 h(j0)
%  Time 04:
%    Gate 05 CU(j2,s0,s1)
%    Gate 07 c-S(j0,j1)
%  Time 05:
%    Gate 08 h(j1)
%    Gate 09 nop(j0)
%  Time 06:
%    Gate 10 c-T(j0,j2)
%  Time 07:
%    Gate 11 c-S(j1,j2)
%    Gate 13 nop(j0)
%  Time 08:
%    Gate 12 h(j2)
%    Gate 14 nop(j0)
%    Gate 15 nop(j1)
%  Time 09:
%    Gate 16 measure(j0)
%    Gate 17 measure(j1)
%    Gate 18 measure(j2)

% Qubit circuit matrix:
%
% j0: gAA, gBA, gCA, gDA, gEA, gFA, gGA, gHA, gIA, N  
% j1: gAB, n  , gCB, gDB, gEB, n  , gGB, gHB, gIB, N  
% j2: gAC, n  , n  , gDC, n  , gFC, gGC, gHC, gIC, N  
% s0: n  , gBD, gCD, gDD, n  , n  , n  , n  , n  , n  
% s1: n  , gBE, gCE, gDE, n  , n  , n  , n  , n  , n  

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

% definitions for the circuit elements

\def\gAA{\op{H}\w\A{gAA}}
\def\gAB{\op{H}\w\A{gAB}}
\def\gAC{\op{H}\w\A{gAC}}
\def\gBD{\gnqubit{U^4}{d}\w\A{gBD}}
\def\gBE{\gspace{U^4}\w\A{gBE}}
\def\gBA{\b\w\A{gBA}}
\def\gCD{\gnqubit{U^2}{d}\w\A{gCD}}
\def\gCE{\gspace{U^2}\w\A{gCE}}
\def\gCB{\b\w\A{gCB}}
\def\gDD{\gnqubit{U}{d}\w\A{gDD}}
\def\gDE{\gspace{U}\w\A{gDE}}
\def\gDC{\b\w\A{gDC}}
\def\gCA{\op{H}\w\A{gCA}}
\def\gDA{\b\w\A{gDA}}
\def\gDB{\op{S}\w\A{gDB}}
\def\gEB{\op{H}\w\A{gEB}}
\def\gEA{*-{}\w\A{gEA}}
\def\gFA{\b\w\A{gFA}}
\def\gFC{\op{T}\w\A{gFC}}
\def\gGB{\b\w\A{gGB}}
\def\gGC{\op{S}\w\A{gGC}}
\def\gHC{\op{H}\w\A{gHC}}
\def\gGA{*-{}\w\A{gGA}}
\def\gHA{*-{}\w\A{gHA}}
\def\gHB{*-{}\w\A{gHB}}
\def\gIA{\meter\w\A{gIA}}
\def\gIB{\meter\w\A{gIB}}
\def\gIC{\meter\w\A{gIC}}

% definitions for bit labels and initial states

\def\bA{\qv{j_{0}}{0}}
\def\bB{\qv{j_{1}}{0}}
\def\bC{\qv{j_{2}}{0}}
\def\bD{ \q{s_{0}}}
\def\bE{ \q{s_{1}}}

% The quantum circuit as an xymatrix

\xymatrix@R=5pt@C=10pt{
    \bA & \gAA &\gBA &\gCA &\gDA &\gEA &\gFA &\gGA &\gHA &\gIA &\N  
\\  \bB & \gAB &\n   &\gCB &\gDB &\gEB &\n   &\gGB &\gHB &\gIB &\N  
\\  \bC & \gAC &\n   &\n   &\gDC &\n   &\gFC &\gGC &\gHC &\gIC &\N  
\\  \bD & \n   &\gBD &\gCD &\gDD &\n   &\n   &\n   &\n   &\n   &\n  
\\  \bE & \n   &\gBE &\gCE &\gDE &\n   &\n   &\n   &\n   &\n   &\n  
%
% Vertical lines and other post-xymatrix latex
%
\ar@{-}"gBD";"gBA"
\ar@{-}"gCD";"gCB"
\ar@{-}"gDD";"gDC"
\ar@{-}"gDB";"gDA"
\ar@{-}"gFC";"gFA"
\ar@{-}"gGC";"gGB"
}

\end{document}