Generation of entanglement in the atom-cavity-fibre system via adiabatic passage  

作　　者：李艳玲 方卯发 

机构地区：[1]College of Physics and Information Science,Hunan Normal University

出　　处：《Chinese Physics B》2010年第3期66-70,共5页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China (Grant No. 10374025);the Natural Science Foundation of Hunan Province of China (Grant No. 07JJ3013)

摘　　要：A scheme, based on the system composed of three atoms separately trapped in three cavities coupled by optical fibres, for entangling two distant atoms via the adiabatic passage is proposed. It is found that the multi-particle W entangled state can also be generated. Moreover, the quantum information sharing can be implemented using this system. These results may be helpful for the implementation of quantum network and useful in quantum cryptography. This scheme is also convenient for operating since only the laser fields applied to the atoms need to be adjusted to accomplish the processes.A scheme, based on the system composed of three atoms separately trapped in three cavities coupled by optical fibres, for entangling two distant atoms via the adiabatic passage is proposed. It is found that the multi-particle W entangled state can also be generated. Moreover, the quantum information sharing can be implemented using this system. These results may be helpful for the implementation of quantum network and useful in quantum cryptography. This scheme is also convenient for operating since only the laser fields applied to the atoms need to be adjusted to accomplish the processes.

关 键 词：entanglement generation quantum information splitting atom-cavity fibre system 

分 类 号：O431.2[机械工程—光学工程] O562[理学—光学]