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  <author_name>derwind</author_name>
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  <blog_title>らんだむな記憶</blog_title>
  <blog_url>https://randommemory.hatenablog.com/</blog_url>
  <categories>
    <anon>quantum_computing</anon>
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  <description>量子 Fourier 変換の後で逆量子 Fourier 変換をすると元に戻ることも確認しておきたい。$$ \begin{align*} \begin{cases} \ket{x} \xrightarrow{QFT} \frac{1}{\sqrt{N}} \sum_{y=0}^{N-1} e^{2\pi i \frac{xy}{N}} \ket{y} \\ \ket{y} \xrightarrow{QFT^{-1}} \frac{1}{\sqrt{N}} \sum_{z=0}^{N-1} e^{-2\pi i \frac{yz}{N}} \ket{z} \\ \end{cases} \end{a…</description>
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  <provider_name>Hatena Blog</provider_name>
  <provider_url>https://hatena.blog</provider_url>
  <published>2022-02-02 02:27:16</published>
  <title>逆量子 Fourier 変換 (2)</title>
  <type>rich</type>
  <url>https://randommemory.hatenablog.com/entry/2022/02/02/022716</url>
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