Characterization of photon statistics in a single-photon source via variable attenuation
Journal Article
·
· Physical Review. A
- Key Laboratory of Quantum Information, University of Science and Technology of China (CAS), Hefei 230026 (China)
- Electronic Technology Institute, Information Engineering University, Zhengzhou, Henan 450004 (China)
We propose a simple but effective scheme for characterizing photon-number statistics of a practical single-photon source. In this scheme, the variable attenuation method which frequently appears in decoy state quantum cryptography is utilized here to enhance the estimation of photon-number statistics. A much stricter bound for vacuum and single-photon proportions is obtained and this result, in turn, is shown to be applicable to the unconditional secure quantum cryptographic communication with single-photon devices.
- OSTI ID:
- 21316473
- Journal Information:
- Physical Review. A, Vol. 80, Issue 4; Other Information: DOI: 10.1103/PhysRevA.80.043807; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
- Country of Publication:
- United States
- Language:
- English
Similar Records
Passive scheme with a photon-number-resolving detector for monitoring the untrusted source in a plug-and-play quantum-key-distribution system
Security and gain improvement of a practical quantum key distribution using a gated single-photon source and probabilistic photon-number resolution
Authentication of quantum messages.
Journal Article
·
Fri Oct 15 00:00:00 EDT 2010
· Physical Review. A
·
OSTI ID:21316473
Security and gain improvement of a practical quantum key distribution using a gated single-photon source and probabilistic photon-number resolution
Journal Article
·
Fri Jul 15 00:00:00 EDT 2005
· Physical Review. A
·
OSTI ID:21316473
+1 more
Authentication of quantum messages.
Conference
·
Mon Jan 01 00:00:00 EST 2001
·
OSTI ID:21316473
+2 more