Entanglement swapping secures multiparty quantum communication

Journal Article · Wed Sep 01 00:00:00 EDT 2004 · Physical Review. A

DOI:https://doi.org/10.1103/PhysRevA.70.032305· OSTI ID:20646010

Lee, Juhui ^[1]; Lee, Soojoon; Kim, Jaewan ^[2]; Oh, Sung Dahm ^[1]

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1. Department of Physics, Sookmyung Women's University, Seoul 140-742 (Korea, Republic of)
2. School of Computatioal Sciences, Korea Institute for Advanced Study, Seoul 130-722 (Korea, Republic of)

Extending the eavesdropping strategy devised by Zhang, Li, and Guo [Zhang, Li, and Guo, Phys. Rev. A 63, 036301 (2001)], we show that the multiparty quantum communication protocol based on entanglement swapping, which was proposed by Cabello (e-print quant-ph/0009025), is not secure. We modify the protocol so that entanglement swapping can secure multiparty quantum communication, such as multiparty quantum key distribution and quantum secret sharing of classical information, and show that the modified protocol is secure against the Zhang-Li-Guo strategy for eavesdropping as well as the basic intercept-resend attack.0.

• OSTI ID: 20646010
• Journal Information: Physical Review. A, Vol. 70, Issue 3; Other Information: DOI: 10.1103/PhysRevA.70.032305; (c) 2004 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
COMMUNICATIONS
CORRELATIONS
DISTRIBUTION
ENERGY LEVELS
INFORMATION
QUANTUM MECHANICS
SECRECY PROTECTION