Entanglement swapping secures multiparty quantum communication
Journal Article
·
· Physical Review. A
- Department of Physics, Sookmyung Women's University, Seoul 140-742 (Korea, Republic of)
- 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, Journal Name: Physical Review. A Journal Issue: 3 Vol. 70; ISSN 1050-2947; ISSN PLRAAN
- Country of Publication:
- United States
- Language:
- English
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