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arXiv · 0908.0421

Depolarization for quantum channels with higher symmetries

A. B. Klimov·L. L. Sanchez-Soto
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Abstract

The depolarization channel is usually modelled as a quantum operation that destroys all input information, replacing it by a completely chaotic state. For qubits this has a quite intuitive interpretation as a shrinking of the Bloch sphere. We propose a way to deal with depolarizing dynamics (in the Markov approximation) for systems with arbitrary symmetries.

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A. B. Klimov, L. L. Sanchez-Soto. 2009-08-04. Depolarization for quantum channels with higher symmetries. https://doi.org/10.1088/0031-8949%2F2010%2Ft140%2F014009

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