Attaining classical capacity per unit cost of noisy bosonic Gaussian channels

Marcin Jarzyna

doi:10.1103/physreva.104.022605

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arXiv · 1912.09931

Attaining classical capacity per unit cost of noisy bosonic Gaussian channels

Marcin Jarzyna

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Abstract

I show that classical capacity per unit cost of noisy bosonic Gaussian channels can be attained by employing generalized on-off keying modulation format and a projective measurement of individual output states. This means that neither complicated collective measurements nor phase-sensitive detection is required to communicate over optical channels at the ultimate limit imposed by laws of quantum mechanics in the limit of low average cost.

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Marcin Jarzyna. 2019-12-20. Attaining classical capacity per unit cost of noisy bosonic Gaussian channels. https://doi.org/10.1103/physreva.104.022605

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