Quantum amplifiers, quantum duplicators and quantum cryptography

Horace P. Yuen*

*Corresponding author for this work

Research output: Contribution to journalArticle

95 Scopus citations

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
DOIs
StatePublished - Jan 1 1996

ASJC Scopus subject areas

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

Fingerprint Dive into the research topics of 'Quantum amplifiers, quantum duplicators and quantum cryptography'. Together they form a unique fingerprint.

  • Cite this