One-way entangled-photon autocompensating quantum cryptography

Journal Article · Sun Jun 01 00:00:00 EDT 2003 · Physical Review. A

DOI:https://doi.org/10.1103/PhysRevA.67.062309· OSTI ID:20636536

Walton, Zachary D; Abouraddy, Ayman F; Sergienko, Alexander V; Saleh, Bahaa E. A.; Teich, Malvin C ^[1]

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1. Quantum Imaging Laboratory, Departments of Electrical and Computer Engineering and Physics, Boston University, 8 Saint Mary's Street, Boston, Massachusetts 02215-2421 (United States)

A quantum cryptography implementation is presented that uses entanglement to combine one-way operation with an autocompensating feature that has hitherto only been available in implementations that require the signal to make a round trip between the users. Using the concept of advanced waves, it is shown that this proposed implementation is related to the round-trip implementation in the same way that Ekert's two-particle scheme is related to the original one-particle scheme of Bennett and Brassard. The practical advantages and disadvantages of the proposed implementation are discussed in the context of existing schemes.

• OSTI ID: 20636536
• Journal Information: Physical Review. A, Vol. 67, Issue 6; Other Information: DOI: 10.1103/PhysRevA.67.062309; (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
ENERGY LEVELS
IMPLEMENTATION
OPERATION
PHOTONS
PROBABILITY
QUANTUM MECHANICS
SECRECY PROTECTION
SIGNALS