Optimal parameter estimation of depolarizing channel
arXiv:quant-ph/0203113 · doi:10.1103/PhysRevA.66.022308
Abstract
We investigate strategies for estimating a depolarizing channel for a finite dimensional system. Our analysis addresses the double optimization problem of selecting the best input probe state and the measurement strategy that minimizes the Bayes cost of a quadratic function. In the qubit case, we derive the Bayes optimal strategy for any finite number of input probe particles when bipartite entanglement can be formed in the probe particles.
7 pages, RevTeX4, 5 figures
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Cited by in corpus (35)
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