Classical Capacity of the Lossy Bosonic Channel: The Exact Solution

V. Giovannetti, S. Guha, S. Lloyd, L. Maccone, J. H. Shapiro, H. P. Yuen

Research output: Contribution to journalArticlepeer-review

6 Scopus citations


The classical capacity of the lossy bosonic channel is calculated exactly. It is shown that its Holevo information is not superadditive, and that a coherent-state encoding achieves capacity. The capacity of far-field, free-space optical communications is given as an example.

Original languageEnglish (US)
Pages (from-to)4
Number of pages1
JournalPhysical review letters
Issue number2
StatePublished - 2004

ASJC Scopus subject areas

  • General Physics and Astronomy


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