Quantum information processing in collective-rotating decoherence-free subspace

被引：3
|
作者：
Su, Shi-Lei [1 ]
Wang, Hong-Fu [2 ]
Zhang, Shou [1 ,2 ]
机构：
[1] Harbin Inst Technol, Dept Phys, Harbin 150001, Heilongjiang, Peoples R China
[2] Yanbian Univ, Coll Sci, Dept Phys, Yanji 133002, Jilin, Peoples R China
来源：
QUANTUM INFORMATION PROCESSING | 2015年 / 14卷 / 06期
基金：
中国国家自然科学基金;
关键词：
Collective-rotating noise; Quantum information processing; Decoherence-free subspace; ERROR-CORRECTION; LINEAR OPTICS; COMPUTATION; COMMUNICATION; REALIZATION; DISSIPATION; COMPUTERS; SCHEME; CAVITY; BOUNDS;
D O I：
10.1007/s11128-015-0975-3
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Using the atomic state encoded in the collective-rotating decoherence-free subspace (CRDFS), two methods to construct the hybrid-controlled-phase-flip gate between photon and the single logic qubit are presented assisted by the cavity input-output process. Then, ways to realize the common single-qubit operations in CRDFS are given out. Based on the former gate and single-qubit operations, methods to construct the parity gate and controlled-phase gate in CRDFS are discussed. Next, two ways to realize the Bell-state measurement and the approach to realize quantum information transfer in CRDFS are proposed. Final discussion and numerical simulation reveal that our work is feasible and useful for quantum information processing tasks in CRDFS.
引用
收藏
页码：1855 / 1867
页数：13
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