Quantum communication and entanglement between two distant atoms via vacuum fields

doi:10.1088/1674-1056/19/6/064204

中国物理B ›› 2010, Vol. 19 ›› Issue (6): 64204-064204.doi: 10.1088/1674-1056/19/6/064204

Quantum communication and entanglement between two distant atoms via vacuum fields

郑仕标

Department of Physics and State Key Laboratory Breeding Base of Photocatalysis, Fuzhou University, Fuzhou 350002, China

收稿日期:2009-10-02 出版日期:2010-06-15 发布日期:2010-06-15
基金资助:
Project supported by the National Natural Science Foundation of China (Grant No.~10674025) and the Doctoral Foundation of the Ministry of Education of China (Grant No.~20070386002).

Quantum communication and entanglement between two distant atoms via vacuum fields

Zheng Shi-Biao(郑仕标)^†

Department of Physics and State Key Laboratory Breeding Base of Photocatalysis, Fuzhou University, Fuzhou 350002, China

Received:2009-10-02 Online:2010-06-15 Published:2010-06-15
Supported by:
Project supported by the National Natural Science Foundation of China (Grant No.~10674025) and the Doctoral Foundation of the Ministry of Education of China (Grant No.~20070386002).

摘要/Abstract

摘要： This paper proposes an efficient scheme for quantum communication between two atoms trapped in distant cavities which are connected by an optical fibre. During the operation, all the atomic system, the cavity modes and the fibre are not excited. The quantum state is mediated by the vacuum fields. The idea can be used to realize quantum entanglement between two distant atoms via vacuum.

Abstract: This paper proposes an efficient scheme for quantum communication between two atoms trapped in distant cavities which are connected by an optical fibre. During the operation, all the atomic system, the cavity modes and the fibre are not excited. The quantum state is mediated by the vacuum fields. The idea can be used to realize quantum entanglement between two distant atoms via vacuum.

Key words: quantum communication, entanglement, vacuum field

中图分类号: (Quantum communication)

03.67.Hk

03.67.Mn (Entanglement measures, witnesses, and other characterizations) 37.10.De (Atom cooling methods) 42.50.Dv (Quantum state engineering and measurements) 42.81.-i (Fiber optics)

郑仕标. Quantum communication and entanglement between two distant atoms via vacuum fields[J]. 中国物理B, 2010, 19(6): 64204-064204.

Zheng Shi-Biao(郑仕标). Quantum communication and entanglement between two distant atoms via vacuum fields[J]. Chin. Phys. B, 2010, 19(6): 64204-064204.

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Quantum communication and entanglement between two distant atoms via vacuum fields

Quantum communication and entanglement between two distant atoms via vacuum fields

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