Detecting Eve in communication with continuous-variable Einstein-Podolsky-Rosen correlations

Journal Article · Thu Mar 15 00:00:00 EDT 2007 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.75.034301· OSTI ID:20982412

Messikh, A ^[1]

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1. Department of ICT, UIA, Jalan Gombak, 53100 Kuala Lumpur (Malaysia)

We study the validity of the entanglement parameter introduced in a recent publication by Guangqiang et al. [Phys. Rev. A 73, 012314 (2006)] for detecting Eve, the eavesdropper. We have found that Eve can be detected using this parameter only if Alice establishes a quantum correlation between the Einstein-Podolsky-Rosen (EPR) pair. This quantum correlation is related to the possibility of an apparent violation of the Heisenberg inequality for the quadrature components of the EPR pair.

• OSTI ID: 20982412
• Journal Information: Physical Review. A, Vol. 75, Issue 3; Other Information: DOI: 10.1103/PhysRevA.75.034301; (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
COMMUNICATIONS
CORRELATIONS
QUADRATURES
QUANTUM CRYPTOGRAPHY
QUANTUM ENTANGLEMENT
QUANTUM INFORMATION
QUANTUM MECHANICS