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Attaining classical capacity per unit cost of noisy bosonic Gaussian channels

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 نشر من قبل Marcin Jarzyna
 تاريخ النشر 2019
  مجال البحث فيزياء
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 تأليف Marcin Jarzyna




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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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