Secure communication using mesoscopic coherent states

Geraldo A. Barbosa*, Eric Corndorf, Prem Kumar, Horace P. Yuen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

183 Scopus citations


A study is performed on secure communication using mesoscopic coherent states. A short secret key is classically extended and then used to encrypt data in a way that the quantum noise of the coherent states protects both the data and the key. It is reported that new avenues are open to secure communications at high speeds in fiber-optic or free-space channels.

Original languageEnglish (US)
Pages (from-to)2279011-2279014
Number of pages4
JournalPhysical review letters
Issue number22
StatePublished - May 22 2003

ASJC Scopus subject areas

  • General Physics and Astronomy


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