Complementarity and additivity for depolarizing channels

Abstract

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

References in corpus (6)

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• Entanglement Cost of Antisymmetric States and Additivity of Capacity of Some Quantum Channel
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Cited by in corpus (2)

• An Infinite Sequence of Additive Channels: the Classical Capacity of Cloning Channels
• Superoperator master equations for depolarizing dynamics