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quantumcircuit.sty
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\usepackage{amsmath}
\usepackage{tikz}
\usetikzlibrary{shapes,arrows,calc,positioning,fit}
\pgfdeclarelayer{background}
\pgfsetlayers{background,main}
\tikzset{cross/.style={path picture={
\draw[black]
(path picture bounding box.south) -- (path picture bounding box.north) (path picture bounding box.west) -- (path picture bounding box.east);
}}}
% a simple macro to draw a gate
\def\gate (#1) [#2]{%
\node [
draw=black,fill=white, inner sep=0pt,
minimum width=2.5em, minimum height=2em, outer sep=1ex
] (#1) at (#1) {#2};
}
\def\roundgate (#1) [#2]{%
\node [
draw=black,fill=white, inner sep=0pt, circle,
minimum width=2.5em, minimum height=2em, outer sep=1ex
] (#1) at (#1) {#2};
}
\def\rgate (#1) [#2]{%
\node [
draw=Red,fill=white, inner sep=0pt,
minimum width=2.5em, minimum height=2em, outer sep=1ex
] (#1) at (#1) {\textcolor{Red}{#2}};
}
% a macro to draw an 'invisible' gate
\def\virtgate (#1){%
\node [
draw=none, fill=none,
minimum width=2.5em, minimum height=2em, outer sep=1ex
] (#1) at (#1) {};
}
% a macro to draw a gate on several wires
\def\mgate (#1) (#2) [#3]{%
\node [
draw=black,fill=white, inner sep=1em, fit=(#1)(#2),
minimum width=2.5em,
outer sep = 1ex,
] (#1#2) {};
\node (#1#2-text) at ($(#1)!0.5!(#2)$) {#3};
}
\def\mrgate (#1) (#2) [#3]{%
\node [
draw=Red,fill=white, inner sep=1em, fit=(#1)(#2),
minimum width=2.5em,
outer sep = 1ex,
] (#1#2) {};
\node (#1#2-text) at ($(#1)!0.5!(#2)$) {\textcolor{Red}{#3}};
}
% a macro to draw a controlled gate
\def\ctrlgate (#1) (#2) [#3]{%
\filldraw [black] (#1) circle (2pt) -- (#2);
\gate (#2) [#3]
}
\def\ctrlroundgate (#1) (#2) [#3]{%
\filldraw [black] (#1) circle (2pt) -- (#2);
\roundgate (#2) [#3]
}
\def\ctrlctrlgate (#1) (#2) (#3) [#4]{%
\filldraw [black] (#1) circle (2pt) -- (#3);
\filldraw [black] (#2) circle (2pt) -- (#3);
\gate (#3) [#4]
}
\def\ctrlctrlctrlgate (#1) (#2) (#3) (#4) [#5]{%
\filldraw [black] (#1) circle (2pt) -- (#4);
\filldraw [black] (#2) circle (2pt) -- (#4);
\filldraw [black] (#3) circle (2pt) -- (#4);
\gate (#4) [#5]
}
\def\ctrlrgate (#1) (#2) [#3]{%
\filldraw [Red] (#1) circle (2pt) -- (#2);
\rgate (#2) [#3]
}
% a macro to draw a controller gate on several wires
\def\ctrlmgate (#1) (#2) (#3) [#4]{%
\filldraw [black] (#1) circle (2pt) -- (#2);
\node [
draw=black,fill=white, inner sep=1em, fit=(#2)(#3),
minimum width=2.5em,
outer sep = 1ex,
] (#2#3) {};
\node (#2#3-text) at ($(#2)!0.5!(#3)$) {#4};
}
% a macro to draw a controller gate on several wires
\def\crossctrlmgate (#1) [#2] (#3) (#4) [#5]{%
\node [draw,circle,cross,black,minimum width=1.5pt,label=below:#2] (#1-crossctrl) at (#1){};
\draw [black,-] (#1) -- (#3);
\node [
draw=black,fill=white, inner sep=1em, fit=(#3)(#4),
minimum width=2.5em,
outer sep = 1ex,
] (#3#4) {};
\node (#3#4-text) at ($(#3)!0.5!(#4)$) {#5};
}
% a macro to draw a controller gate on several wires
\def\crossctrlgate (#1) [#2] (#3) [#4]{%
\node [draw,circle,cross,black,minimum width=1.5pt,label=below:#2] (#1-crossctrl) at (#1){};
\draw [black,-] (#1) -- (#3);
\node [
draw=black,fill=white, inner sep=1em,
minimum width=2.5em,
outer sep = 1ex,
] (#3-node) at (#3) {};
\node [align=center] (#3-text) at (#3) {#4};
}
\def\cnot (#1) (#2){%
\node [%
draw,circle,cross,black,minimum width=10pt,%
minimum width=1.5em, minimum height=1.5em, outer sep=1ex,inner sep=0pt%
] (#2-cross) at (#2){};
\filldraw [black] (#1) circle (2pt) -- (#2);
}
\def\ccnot (#1) (#2) (#3){%
\node [%
draw,circle,cross,black,minimum width=10pt,%
minimum width=1.5em, minimum height=1.5em, outer sep=1ex,inner sep=0pt%
] (#3-cross) at (#3){};
\filldraw [black] (#1) circle (2pt) -- (#3);
\filldraw [black] (#2) circle (2pt) -- (#3);
}
\def\cccnot (#1) (#2) (#3) (#4){%
\node [%
draw,circle,cross,black,minimum width=10pt,%
minimum width=1.5em, minimum height=1.5em, outer sep=1ex,inner sep=0pt%
] (#4-cross) at (#4){};
\filldraw [black] (#1) circle (2pt) -- (#4);
\filldraw [black] (#2) circle (2pt) -- (#4);
\filldraw [black] (#3) circle (2pt) -- (#4);
}
% a macro to draw a "measurement" box
\def\meas (#1) [#2]{%
\node [
draw=black, fill=white, inner sep=2pt,
label distance=-5mm, minimum height=2em, minimum width=2em
] (meas) at (#1) {};
\draw ($(meas.south) + (-.75em,1.5mm)$) arc (150:30:.85em);
\draw ($(meas.south) + (0,1mm)$) -- ++(.8em,1em);
\node [
anchor=north west, inner sep=1.5pt, font=\small
] at (meas.north west) {#2};
}
% two short macros to produce the labels for the inputs and outputs of wires
\def\inputlabel (#1) [#2]{%
\node at (#1) [anchor=east] {#2}
}
\def\outputlabel (#1) [#2]{%
\node at (#1) [anchor=west] {#2}
}
% a macro which allows you to define a named wire and its vertical position in the circuit diagram
\def\defwire (#1) at (#2){%
\ifx\qmwires\empty
\edef\qmwires{#1}%
\else
\edef\qmwires{\qmwires,#1}%
\fi
\coordinate (#1-0) at ($(0,#2)$)%
}
\def\drawwires [#1] (#2);{%
\xdef\u{0}
\foreach \t in {0,...,#2} {%
\foreach \l in \qmwires {%
\coordinate (\l-\t) at ($(\l-\u) + (#1,0)$);
\draw (\l-\u) -- (\l-\t);
}
\xdef\u{\t}
}
}
\def\bgframe [#1]{%
\node [%
draw=black, fill=yellow!40!gray!30!white, fit=#1
] {}%
}
\def\bgframe [#1] [#2]{%
\node [%
draw=black, fill=#1, fit=#2
] {}%
}