Attaining classical capacity per unit cost of noisy bosonic Gaussian channels

被引:1
作者
Jarzyna, Marcin [1 ]
机构
[1] Univ Warsaw, Ctr Quantum Opt Technol, Ctr New Technol, Ulica Banacha 2c, PL-02097 Warsaw, Poland
关键词
STANDARD QUANTUM LIMIT; COMMUNICATION; SUPERADDITIVITY; INFORMATION; RATES;
D O I
10.1103/PhysRevA.104.022605
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
I show that classical capacity per unit cost of noisy bosonic Gaussian channels can be attained by employing a 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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页数:6
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