Minimum output entrophy of a Gaussian Bosonic channel

Vittorio Giovannetti, Lorenzo Maccone, Saikat Guha, Seth Lloyd, Jeffrey H. Shapiro, Brent J. Yen

Research output: Contribution to journalArticlepeer-review


The entropy at the output of a Bosonic channel is analyzed whencoherent fields are randomly added to the signal. Coherent-stateinputs are conjectured to provide the minimum output entropy. Supporting physical and mathematical evidence is provided.

Original languageEnglish (US)
Pages (from-to)153-158
Number of pages6
JournalInternational Journal of Quantum Information
Issue number1
StatePublished - Mar 2005


  • Additivity
  • Bosonic channels
  • Capacity
  • Entropy
  • Quantum channels

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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