Quantum amplifiers, quantum duplicators and quantum cryptography

Horace P. Yuen*

*Corresponding author for this work

Research output: Contribution to journalArticle

95 Citations (Scopus)

Abstract

Several methods for eavesdropping on the standard four coherent-state quantum cryptosystem together with a possible countermeasure are analysed and found to place a limit on the tolerable energy disadvantage of the users as compared to the eavesdropper. The possible significant role of the photon-number amplifier and the photon-number duplicator is indicated.

Original languageEnglish (US)
Pages (from-to)939-949
Number of pages11
JournalJournal of Optics B: Quantum and Semiclassical Optics
Volume8
Issue number4
StatePublished - Dec 1 1996

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quantum amplifiers
Quantum cryptography
quantum cryptography
Photons
Light amplifiers
countermeasures
photons
Cryptography
amplifiers
energy

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Physics and Astronomy (miscellaneous)

Cite this

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Quantum amplifiers, quantum duplicators and quantum cryptography. / Yuen, Horace P.

In: Journal of Optics B: Quantum and Semiclassical Optics, Vol. 8, No. 4, 01.12.1996, p. 939-949.

Research output: Contribution to journalArticle

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