Abstract This paper proposes a scheme for realizing entanglement swapping in cavity QED. The scheme is based on the resonant interaction of a two-mode cavity field with a $\Lambda$-type three-level atom. In contrast with the previously proposed schemes, the present scheme is ascendant, since the fidelity is 1.0 and the joint measurement isn't needed. And the scheme is experimentally feasible based on the current cavity QED technique.
Received: 06 June 2006
Revised: 01 August 2006
Accepted manuscript online:
(Entanglement measures, witnesses, and other characterizations)
Fund: Project supported
by the National Natural Science Foundation of China (Grant No
10574022), the Funds of
the Natural Science of Fujian Province, China (Grant No Z0512006).
Cite this article:
Lin Xiu(林秀), Li Hong-Cai(李洪才), Yang Rong-Can(杨榕灿), and Huang Zhi-Ping(黄志平) Entanglement swapping without joint measurement via a $\Lambda$-type atom interacting with bimodal cavity field 2007 Chinese Physics 16 919
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