Generation of four-photon W state via cavity QED

doi:10.1088/1674-1056/17/9/012

中国物理B ›› 2008, Vol. 17 ›› Issue (9): 3217-3219.doi: 10.1088/1674-1056/17/9/012

Generation of four-photon W state via cavity QED

钟志荣

Department of Physics, Fuzhou University, Fuzhou 350002, China

收稿日期:2007-08-20 修回日期:2007-11-16 出版日期:2008-09-08 发布日期:2008-09-08
基金资助:
Project supported by National Natural Science Foundation of China (Grant No 10674025) and the Development Funds of Fuzhou University of China (Grant No 2007-XY-15).

Generation of four-photon W state via cavity QED

Zhong Zhi-Rong(钟志荣)^†

Department of Physics, Fuzhou University, Fuzhou 350002, China

Received:2007-08-20 Revised:2007-11-16 Online:2008-09-08 Published:2008-09-08
Supported by:
Project supported by National Natural Science Foundation of China (Grant No 10674025) and the Development Funds of Fuzhou University of China (Grant No 2007-XY-15).

摘要/Abstract

摘要： This paper proposes an alternative scheme for generating four-photon W state via cavity QED. The scheme bases on the resonant interaction of a \Lambda -type three level atom with two bimodal cavities. The detection of atom collapses the cavity to the desired state. Comparing with previous schemes, the advantage of this scheme is that the interaction time can be greatly shortened since it uses the resonant interaction between atom and cavities. Moreover, the proposed scheme is more experimentally feasible than the previous ones.

关键词: W state, resonant interaction

Abstract: This paper proposes an alternative scheme for generating four-photon W state via cavity QED. The scheme bases on the resonant interaction of a $\varLambda$ -type three level atom with two bimodal cavities. The detection of atom collapses the cavity to the desired state. Comparing with previous schemes, the advantage of this scheme is that the interaction time can be greatly shortened since it uses the resonant interaction between atom and cavities. Moreover, the proposed scheme is more experimentally feasible than the previous ones.

Key words: W state, resonant interaction

中图分类号: (Cavity quantum electrodynamics; micromasers)

42.50.Pq

03.65.Ud (Entanglement and quantum nonlocality) 03.67.Mn (Entanglement measures, witnesses, and other characterizations) 42.50.Dv (Quantum state engineering and measurements) 42.50.Hz (Strong-field excitation of optical transitions in quantum systems; multiphoton processes; dynamic Stark shift)

钟志荣. Generation of four-photon W state via cavity QED[J]. 中国物理B, 2008, 17(9): 3217-3219.

Zhong Zhi-Rong(钟志荣). Generation of four-photon W state via cavity QED[J]. Chin. Phys. B, 2008, 17(9): 3217-3219.

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Generation of four-photon W state via cavity QED

Generation of four-photon W state via cavity QED

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