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arXiv · 1810.05160

Regularized maximal fidelity of the generalized Pauli channels

Katarzyna Siudzińska
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Abstract

We consider the asymptotic regularization of the maximal fidelity for the generalized Pauli channels, which is a problem similar to the classical channel capacity. In particular, we find the formulas for the extremal channel fidelities and the maximal output $\infty$-norm. For wide classes of channels, we show that these quantities are multiplicative. Finally, we find the regularized maximal fidelity for the channels satisfying the time-local master eqeuations.

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Katarzyna Siudzińska. 2018-10-11. Regularized maximal fidelity of the generalized Pauli channels. https://doi.org/10.1103/physreva.99.012340

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