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Conferences > ICQI > 2001 > PA > PA5
  • Optical Fiber Communication Conference and International Conference on Quantum Information
  • 2001 OSA Technical Digest Series (Optica Publishing Group, 2001),
  • paper PA5
  • •https://doi.org/10.1364/ICQI.2001.PA5

Quantum cryptography based on realistic “single-photon” source

Jan Peřina, Ondřej Haderka, and Jan Soubusta

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Abstract

A photon source based on postselection from entangled photon pairs produced by parametric frequency down-conversion is suggested and applied in quantum cryptography. Its ability to provide good approximations of single-photon states is examined. Use of this source for quantum key distribution is discussed. Advantages of this quantum-key-distribution system are clarified.

© 2001 Optical Society of America

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