Complementarity and additivity for depolarizing channels

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In this paper we use the method of a recent paper (quant-ph/0509101) to compute complementary channels for certain important cases, such as depolarizing and transpose-depolarizing channels. This method allows us to easily obtain the minimal Kraus representations from non--minimal ones. We also study the properties of the output purity of the tensor product of a channel and its complement.
17 pages

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Quantum Physics

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http://salesiana.dossiersoluciones.com/handle/123456789/104132

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/quant-ph/0510145
 http://arxiv.org/abs/quant-ph/0510145

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arXiv