Modified Wigner inequality for secure quantum-key distribution

Journal Article · Tue Apr 01 00:00:00 EST 2003 · Physical Review. A

DOI:https://doi.org/10.1103/PhysRevA.67.044303· OSTI ID:20634043

Castelletto, S; Degiovanni, I P; Rastello, M L ^[1]

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1. Optical Technology Division, National Institute of Standards and Technology, Gaithersburg, Maryland 20899-8441 (United States)

In this paper, we discuss the insecurity with present implementations of the Ekert protocol for quantum-key distribution based on the Wigner inequality. We propose a modified version of this inequality which guarantees safe quantum-key distribution.

• OSTI ID: 20634043
• Journal Information: Physical Review. A, Vol. 67, Issue 4; Other Information: DOI: 10.1103/PhysRevA.67.044303; (c) 2003 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
CORRELATIONS
DISTRIBUTION
ENERGY LEVELS
IMPLEMENTATION
QUANTUM MECHANICS
SECRECY PROTECTION