On the classical capacity of quantum Gaussian channels

Details On the classical capacity of quantum Gaussian channels On the classical capacity of quantum Gaussian channels

2010-12-29

arxiv.org/abs/1012.5965v2

Phys. Scr. T 143 (2011) 014016

Physics

Quantum Physics

10 pages, IOP style. v2: minor corrections, close to the published version

Scientific paper

10.1088/0031-8949/2011/T143/0140

The set of quantum Gaussian channels acting on one bosonic mode can be
classified according to the action of the group of Gaussian unitaries. We look
for bounds on the classical capacity for channels belonging to such a
classification. Lower bounds can be efficiently calculated by restricting to
Gaussian encodings, for which we provide analytical expressions.

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