Efficient scheme for teleportation of an unknown N-atom state via a two-atom entangled state without the Bell-state measurement in cavity QED
Wang Xin-Wen (汪新文)ab, Liu Xiang (刘翔)a, Fang Mao-Fa (方卯发)a
a Department of Physics, Hunan Normal University, Changsha 410081, China; b Department of Physics, Hunan University of Science and Engineering, Yongzhou 425006, China
Abstract We propose a scheme for teleportation of an unknown $N$-atom state using a two-atom entangled state within a cavity QED and show the feasibility in experiment. Our scheme does not involve the Bell-state measurement and is insensitive to the cavity decay, which is important from the experimental point of view. Another feature of the scheme is that teleporting a $N$-atom state just requires a small amount of entanglement (i.e. a two-atom entangled state) and less classical bits (two bits).
Received: 02 June 2005
Revised: 16 June 2005
Accepted manuscript online:
Fund: roject supported by the National Natural Science Foundation of China (Grant No 10374025) and the Scientific Research Fund of Hunan Provincial Education Department (Grant No 01c260).
Cite this article:
Wang Xin-Wen (汪新文), Liu Xiang (刘翔), Fang Mao-Fa (方卯发) Efficient scheme for teleportation of an unknown N-atom state via a two-atom entangled state without the Bell-state measurement in cavity QED 2006 Chinese Physics 15 676
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