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On Concurrence and Entanglement of Rank Two Channels

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Open Systems & Information Dynamics

Abstract

Concurrence and further entanglement quanti.ers can be computed explicitly for channels of rank two if representable by just two Kraus operators. Almost all details are available for the subclass of rank two 1-qubit channels. There is a simple geometric picture beyond, explaining nicely the role of anti-linearity.

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  1. Institute for Theoretical Physics, University of Leipzig, Germany

    Armin Uhlmann

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  1. Armin Uhlmann
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Correspondence to Armin Uhlmann.

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Uhlmann, A. On Concurrence and Entanglement of Rank Two Channels. Open Syst Inf Dyn 12, 93–106 (2005). https://doi.org/10.1007/s11080-005-0490-6

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  • DOI: https://doi.org/10.1007/s11080-005-0490-6

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