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Formula of channel matrix for coded quantum signals by classical linear codes over Zm

机译:Z m 上经典线性编码的量子信号编码信道矩阵的公式

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摘要

A formula of channel matrix for linear codes over Zm is presented. m-ary PSK coherent-states are used as letter states and the square-root measurement (SRM) is used as a decoding. First, arbitrary linear codes over Zm are shown to group covariant. Then the formula of channel matrix is derived by generalizing [T.S. Usuda, S. Usami, I. Takumi, and M. Hata, Phys. Lett. A305, pp.125–134, (2002)]. Furthermore, the usefulness of the formula is considered.
机译:给出了Z m 上线性码的信道矩阵公式。将m元PSK相干态用作字母态,并将平方根测量(SRM)用作解码。首先,显示Z m 上的任意线性代码将协变分组。然后,通过概括[T.S.宇佐田(Usuda),宇佐美(S.来吧A305,第125–134页,(2002年)]。此外,考虑了该公式的有用性。

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