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arXiv:quant-ph/0304117 · Physical Review A

Minimum-error discrimination between symmetric mixed quantum states

Chih‐Lung Chou, Li‐Yi Hsu

Published Oct 7, 2003• 88 citations
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Abstract

We provide a solution of finding optimal measurement strategy for distinguishing between symmetric mixed quantum states. It is assumed that the matrix elements of at least one of the symmetric quantum states are all real and non-negative in the basis of the eigenstates of the symmetry operator.
DOI
10.1103/physreva.68.042305

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