Depolarization for quantum channels with higher symmetries
arXiv:0908.0421 · doi:10.1088/0031-8949/2010/T140/014009
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.
6 pages. Comments welcome
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