derwind https://blog.hatena.ne.jp/derwind/ らんだむな記憶 https://randommemory.hatenablog.com/ quantum_computing $$ \begin{align*} P(\phi) = \begin{bmatrix} 1 & 0 \\ 0 & e^{i \phi} \end{bmatrix} \end{align*} $$は Z-軸の周りの回転を発生させ、$\ket{\psi} = a \ket{0} + b \ket{1}$ に作用させると、$P(\phi) \ket{\psi} = a \ket{0} + b e^{i \phi} \ket{1}$ のように位相を変化させる。 $I = P(0)$, $S = \sqrt{Z} = P(\frac{\pi}{2})$, $T = \sqrt[4]{Z} = P(\fr… 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Frandommemory.hatenablog.com%2Fentry%2F2022%2F05%2F03%2F214817" title="&lt;QT&gt; P ゲート - らんだむな記憶" class="embed-card embed-blogcard" scrolling="no" frameborder="0" style="display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;"></iframe> Hatena Blog https://hatena.blog 2022-05-03 21:48:17 rich https://randommemory.hatenablog.com/entry/2022/05/03/214817 1.0 100%