Derivation of classical capacity of quantum channel for discrete information source

Details Derivation of classical capacity of quantum channel for discrete information source Derivation of classical capacity of quantum channel for discrete information source

1998-11-30

arxiv.org/abs/quant-ph/9811085v1

Physics

Quantum Physics

9 pages, RevTeX, 3 figures(EPSF)

Scientific paper

10.1016/S0375-9601(98)00896-2

In this letter, we prove that the classical capacity of quantum channel for
$M$ symmetric states is achieved by an uniform distribution on a priori
probabilities. We also investigate non-symmetric cases such as a ternary
amplitude shift keyed signal set and a 16-ary quadrature amplitude modulated
signal set in coherent states.

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