Phys. Rev. Lett. 100, 070504 (2008) [4 pages]Experimental Demonstration of a Quantum Protocol for Byzantine Agreement and Liar DetectionReceived 1 October 2007; published 21 February 2008 We introduce a new quantum protocol for solving detectable Byzantine agreement (also called detectable broadcast) between three parties, and also for solving the detectable liar detection problem. The protocol is suggested by the properties of a four-qubit entangled state, and the classical part of the protocol is simpler than that of previous proposals. In addition, we present an experimental implementation of the protocol using four-photon entanglement. © 2008 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.100.070504
DOI:
10.1103/PhysRevLett.100.070504
PACS:
03.67.Hk, 03.67.Pp, 42.50.Dv
See AlsoComment: Fei Gao, Fen-Zhuo Guo, Qiao-Yan Wen, and Fu-Chen Zhu, Comment on “Experimental Demonstration of a Quantum Protocol for Byzantine Agreement and Liar Detection”, Phys. Rev. Lett. 101, 208901 (2008). Reply: Sascha Gaertner, Mohamed Bourennane, Christian Kurtsiefer, Adán Cabello, and Harald Weinfurter, Gaertner et al. Reply:, Phys. Rev. Lett. 101, 208902 (2008). |
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