Fault-tolerant quantum secret sharing against collective noise

被引：34
|
作者：
Yang, Yu-Guang [1 ,3 ,4 ]
Teng, Yi-Wei [1 ]
Chai, Hai-Ping [1 ]
Wen, Qiao-Yan [2 ]
机构：
[1] Beijing Univ Technol, Coll Comp Sci & Technol, Beijing 100124, Peoples R China
[2] Beijing Univ Posts & Telecommun, State Key Lab Networking & Switching Technol, Beijing 100876, Peoples R China
[3] Xidian Univ, State Key Lab Integrated Serv Network, Xian 710071, Peoples R China
[4] Chinese Acad Sci, State Key Lab Informat Secur, Grad Univ, Beijing 100049, Peoples R China
来源：
PHYSICA SCRIPTA | 2011年 / 83卷 / 02期
基金：
北京市自然科学基金; 中国国家自然科学基金;
关键词：
KEY DISTRIBUTION; MULTIPARTY; ENTANGLEMENT; COMMUNICATION; INFORMATION; PURIFICATION; EFFICIENT; SECURITY; SCHEME;
D O I：
10.1088/0031-8949/83/02/025003
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We present two robust quantum secret sharing protocols against two kinds of collective noise with single logical qubits. Each logical qubit is encoded in two-qubit noiseless states and so it can function over a quantum channel subjected to a collective noise. The safety of transmission is ensured by nonorthogonality of the noiseless states traveling forward and backward on the quantum channel. Moreover, we construct efficient quantum circuits to implement channel encoding and information encoding by means of primitive operations in quantum computation.
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页数：4
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