Photon-number-resolved heralded-photon source for improved quantum key distribution

Journal Article · Sun Jul 15 00:00:00 EDT 2007 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.76.012306· OSTI ID:21011173

Horikiri, Tomoyuki ^[1]; Takeno, Yuishi ^[1]; Yabushita, Atsushi ^[2]; Kobayashi, Takayoshi ^[3]

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1. Department of Physics, Graduate School of Science, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033 (Japan)
2. Department of Electrophysics, Faculty of Science, National Chiao Tung University, 1001 Ta Hsueh Road, Hsinchu, Taiwan 300 (China)
3. ICORP, JST, 4-1-8 Honcho, Kawaguchi, Saitama (Japan)

We have suppressed multiphoton probability of a heralded-photon source, which is vital for quantum key distribution with a higher secure key generation rate. It is accomplished by utilizing a practical photon-number-resolving detector for triggering resulting in an important step for improved practical quantum key distribution. Heralded-photon source and a practical photon-number-resolving detector capable of real-time processed multiphoton rejection are stably operable at room temperature and enable us to generate a secure key at a distance as long as an ideal single photon source is used.

• OSTI ID: 21011173
• Journal Information: Physical Review. A, Vol. 76, Issue 1; Other Information: DOI: 10.1103/PhysRevA.76.012306; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
MULTI-PHOTON PROCESSES
PHOTONS
PROBABILITY
QUANTUM CRYPTOGRAPHY
QUANTUM MECHANICS
TEMPERATURE RANGE 0273-0400 K