Engineering multipartite steady entanglement of distant atoms via dissipation  

作　　者：Zhao Jin S.-L. Su Ai-Dong Zhu Hong-Fu Wang Shou Zhang 

机构地区：[1]Department of Physics, Harbin Institute of Technology, Harbin 150001, China [2]School of Physics and Engineering, Zhengzhou University, Zhengzhou 450001, China [3]Department of Physics, College of Science, Yanbian University, Yanji, dilin 133002, China

出　　处：《Frontiers of physics》2018年第5期165-174,共10页物理学前沿（英文版）

基　　金：This work was supported by the National Natural Science Foundation of China under Grant Nos. 11564041, 11747096, 11165015, 11264042, 11465020, and 61465013; the Project of Jilin Science and Technology Development for Lead- ing Talent of Science and Technology Innovation in Middle and Young and Team Project under Grant No. 20160519022JH; China Postdoctoral Science Foundation under Grant Nos. 2017M612411, 2018Tl10735; the Education Department Foundation of Henan Province under Grant No. 18A140009.

摘　　要：We propose a scheme for generating an entangled state for three atoms trapped in separate optical cavities that are coupled to each other through two optical fibers based on coherent driving and dissi- pation, which are induced by the classical fields and the decay of non-local bosonic modes, respectively. In our scheme, the interaction time need not be controlled strictly in the overall dynamics process, and the cavity field decay can be changed into a vital resource. The numerical simulation shows that the fidelity of the target state is insensitive to atomic spontaneous emission, and our scheme is good enough to generate the W state of distant atoms with a high fidelity and purity. In addition, the present scheme can also be generalized to prepare the N-partite W state of distant atoms.We propose a scheme for generating an entangled state for three atoms trapped in separate optical cavities that are coupled to each other through two optical fibers based on coherent driving and dissi- pation, which are induced by the classical fields and the decay of non-local bosonic modes, respectively. In our scheme, the interaction time need not be controlled strictly in the overall dynamics process, and the cavity field decay can be changed into a vital resource. The numerical simulation shows that the fidelity of the target state is insensitive to atomic spontaneous emission, and our scheme is good enough to generate the W state of distant atoms with a high fidelity and purity. In addition, the present scheme can also be generalized to prepare the N-partite W state of distant atoms.

关 键 词：steady-state entanglement dissipative dynamics laser manipulation 

分 类 号：O562.1[理学—原子与分子物理] TP273.2[理学—物理]