Nondestructive Greenberger-Horne-Zeilinger-state analyzer

被引：23
|
作者：
Wang, Xin-Wen [1 ,2 ,3 ]
Zhang, Deng-Yu [3 ]
Tang, Shi-Qing [3 ]
Xie, Li-Jun [3 ]
机构：
[1] Hunan Normal Univ, Key Lab Low Dimens Quantum Struct & Quantum Contr, Minist Educ, Changsha 410081, Hunan, Peoples R China
[2] Hunan Normal Univ, Dept Phys, Changsha 410081, Hunan, Peoples R China
[3] Hengyang Normal Univ, Dept Phys & Elect Informat Sci, Hengyang 421008, Peoples R China
来源：
QUANTUM INFORMATION PROCESSING | 2013年 / 12卷 / 02期
基金：
中国博士后科学基金; 中国国家自然科学基金;
关键词：
Nondestructive GHZ-state analyzer; Parity gate; Photonic qubit; Weak cross-Kerr nonlinearity; QUANTUM TELEPORTATION; ENTANGLEMENT; SCHEME; OPTICS;
D O I：
10.1007/s11128-012-0453-0
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We propose a method to construct a nondestructive n-qubit Greenberger- Horne-Zeilinger (GHZ)-state analyzer. The method is applied to any systems in which two-qubit parity gates, controlled-phase gates, or controlled-NOT gates can be realized. We also present a simplified two-photon parity gate with which a nondestructive n-photon GHZ-state analyzer could be largely simplified. The nondestructive GHZ-state analyzer is expected to find useful applications for economical quantum-information processing.
引用
收藏
页码：1065 / 1075
页数：11
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