Optics and Spectroscopy

, Volume 99, Issue 2, pp 185–191 | Cite as

Secure quantum channels with correlated twin laser beams

  • C. V. Usenko
  • V. C. Usenko
Quantum-Correlated Light Beams for Quantum Optics and Quantum Cryptography


A quantum cryptographic protocol based on the use of a strongly correlated pair of laser beams is proposed. The properties of the corresponding states are described in detail. The protocol is based on the strong correlation of photon numbers in both beams in each measurement. The protocol stability against basic interception attempts is analyzed.


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Copyright information

© Pleiades Publishing, Inc. 2005

Authors and Affiliations

  • C. V. Usenko
    • 1
  • V. C. Usenko
    • 2
  1. 1.Department of Theoretical PhysicsShevchenko National UniversityKievUkraine
  2. 2.Institute of PhysicsNational Academy of Sciences of UkraineKievUkraine

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