Experimental demonstration of a quantum protocol for byzantine agreement and liar detection

被引：33
|
作者：
Gaertner, Sascha [1 ,2 ]
Bourennane, Mohamed [3 ]
Kurtsiefer, Christian [4 ]
Cabello, Adan [5 ]
Weinfurter, Harald [1 ,2 ]
机构：
[1] Max Planck Inst Quantum Opt, D-85748 Garching, Germany
[2] Univ Munich, Fak Phys, D-80799 Munich, Germany
[3] Stockholm Univ, Dept Phys, SE-10691 Stockholm, Sweden
[4] Natl Univ Singapore, Dept Phys, Singapore 117542, Singapore
[5] Univ Seville, Dept Fis Aplicada 2, E-41012 Seville, Spain
来源：
PHYSICAL REVIEW LETTERS | 2008年 / 100卷 / 07期
关键词：
D O I：
10.1103/PhysRevLett.100.070504
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
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.
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页数：4
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