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arXiv · 0906.2762

Minimum output entropy of Gaussian channels

S. Lloyd·V. Giovannetti·L. Maccone·S. Pirandola·R. Garcia-Patron
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Abstract

We show that the minimum output entropy for all single-mode Gaussian channels is additive and is attained for Gaussian inputs. This allows the derivation of the channel capacity for a number of Gaussian channels, including that of the channel with linear loss, thermal noise, and linear amplification.

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S. Lloyd, V. Giovannetti, L. Maccone, S. Pirandola, R. Garcia-Patron. 2010-01-21. Minimum output entropy of Gaussian channels. https://arxiv.org/abs/0906.2762

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