Gaussian classical-quantum channels: gain of entanglement-assistanceReportar como inadecuado



 Gaussian classical-quantum channels: gain of entanglement-assistance


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In the present paper we introduce and study Bosonic Gaussian classical-quantum (c-q) channels; the embedding of the classical input into quantum is always possible and therefore the classical entanglement-assisted capacity C {ea} under appropriate input constraint is well defined. We prove a general property of entropy increase for weak complementary channel, that implies the equality C {ea}=C (where C is the unassisted capacity) for certain class of c-q Gaussian channel under appropriate energy-type constraint. On the other hand, we show by explicit example that the inequality C



Autor: A. S. Holevo

Fuente: https://archive.org/







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