File:Shor's algorithm.svg
Summary
| Description |
English: Quantum subroutine for order finding in Shor's algorithm. Based on Figure 1 in Circuit for Shor's algorithm using 2n+3 qubits by Stephane Beauregard. |
| Date | |
| Source | Own work. Created in LaTeX using Q-circuit. Source code below. |
| Author | Bender2k14 |
\documentclass[11pt]{article}
\input{Qcircuit}
\thispagestyle{empty}
\begin{document}
\[
\Qcircuit @C=.7em @R=.7em {
\lstick{\ket{0}} & \gate{H} & \qw & \qw & \qw & \qw & \cdots & & \ctrl{4} & \multigate{3}{\textrm{QFT}_{2n}^{-1}} & \qw & \meter & \cw \\
\lstick{\vdots\ \ } & \vdots & & & & & & & & \pureghost{\textrm{QFT}_{2n}^{-1}} & & \vdots & \\
\lstick{\ket{0}} & \gate{H} & \qw & \qw & \ctrl{2} & \qw & \cdots & & \qw & \ghost{\textrm{QFT}_{2n}^{-1}} & \qw & \meter & \cw \\
\lstick{\ket{0}} & \gate{H} & \qw & \ctrl{1} & \qw & \qw & \cdots & & \qw & \ghost{\textrm{QFT}_{2n}^{-1}} & \qw & \meter & \cw \\
\lstick{\ket{1}} & /^n \qw & \qw & \gate{U{a^{2^0}}} & \gate{U{a^{2^1}}} & \qw & \cdots & & \gate{U{a^{2^{2n-1}}}} & \qw
}
\]
\end{document}
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