Quantum key distribution using entangled-photon trains with no basis selection

Journal Article · Wed Mar 15 00:00:00 EST 2006 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.73.0· OSTI ID:20786881

Inoue, Kyo ^[1]; Takesue, Hiroki ^[2]

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1. Osaka University, Osaka 565-0871 (Japan)
2. NTT Basic Research Laboratories, NTT Corporation, Kanagawa 243-0198 (Japan)

Conventional quantum key distribution (QKD) protocols include a basis selection process for providing a secure secret key. In contrast, this paper proposes an entanglement-based QKD with no basis selection procedure. Entangled-photon pulse trains with an average photon number less than one per pulse are sent to two legitimate parties, from which a secret key is created utilizing the entanglement nature. Eavesdropping on a transmission line is prevented by a condition of less than one photon per pulse, and sending classically correlated coherent pulses instead of quantum correlated ones is revealed by monitoring coincident count rate000.

• OSTI ID: 20786881
• Journal Information: Physical Review. A, Vol. 73, Issue 3; Other Information: DOI: 10.1103/PhysRevA.73.032332; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
COUNTING RATES
DISTRIBUTION
OPTICS
PHOTONS
POWER TRANSMISSION LINES
PULSES
QUANTUM CRYPTOGRAPHY
QUANTUM ENTANGLEMENT