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.
Received: 20 August 2007
Revised: 16 November 2007
Accepted manuscript online:
(Strong-field excitation of optical transitions in quantum systems; multiphoton processes; dynamic Stark shift)
Fund: 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).
Cite this article:
Zhong Zhi-Rong(钟志荣) Generation of four-photon W state via cavity QED 2008 Chin. Phys. B 17 3217
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