File:Quantum phase estimation.svg

Summary

Description
English: Quantum phase estimation circuit where is the quantum Fourier transform on n qubits.
Date
Source Own work
Author Bender2k14
SVG development
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Source code

Q-CIRCUIT (Q-circuit) – This Wikidata item has no property P154 (logo). Click here to edit the Wikidata item
Q-CIRCUIT (Q-circuit) This Wikidata item has no property P154 (logo). Click here to edit the Wikidata item
This media was created with Q-circuit (macro package for drawing quantum circuit diagrams in LaTeX)Category:Images with Q-circuit source code
Here is a listing of the source used to create this file.

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\documentclass[11pt]{article}
\input{Qcircuit}
\thispagestyle{empty}
\begin{document}
\begin{align*}
 \Qcircuit @C=.7em @R=.7em {
  \lstick{\ket{0}}    & \gate{H} & \qw & \ctrl{4} & \qw        & \qw & \cdots & & \qw                & \multigate{3}{F_n^{-1}} & \qw    & \meter & \cw \\
  \lstick{\ket{0}}    & \gate{H} & \qw & \qw      & \ctrl{3}   & \qw & \cdots & & \qw                & \ghost{F_n^{-1}}	& \qw  & \meter & \cw \\
  \lstick{\vdots\ \ } & \vdots   &     &          &            &     &        & &                    & \pureghost{F_n^{-1}}    &        & \vdots &     \\
  \lstick{\ket{0}}    & \gate{H} & \qw & \qw      & \qw        & \qw & \cdots & & \ctrl{1}           & \ghost{F_n^{-1}}	& \qw  & \meter & \cw \\
  \lstick{\ket{\psi}} & /^m \qw  & \qw & \gate{U} & \gate{U^2} & \qw & \cdots & & \gate{U^{2^{n-1}}} & \qw
 }
\end{align*}
\end{document}

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