中国物理B ›› 2016, Vol. 25 ›› Issue (7): 70304-070304.doi: 10.1088/1674-1056/25/7/070304
Tang-Kun Liu(刘堂昆), Kang-Long Zhang(张康隆), Yu Tao(陶宇), Chuan-Jia Shan(单传家), Ji-Bing Liu(刘继兵)
Tang-Kun Liu(刘堂昆)1, Kang-Long Zhang(张康隆)1,2, Yu Tao(陶宇)1, Chuan-Jia Shan(单传家)1, Ji-Bing Liu(刘继兵)1
摘要: The temporal evolution of the degree of entanglement between two atoms in a system of the binomial optical field interacting with two arbitrary entangled atoms is investigated. The influence of the strength of the dipole-dipole interaction between two atoms, probabilities of the Bernoulli trial, and particle number of the binomial optical field on the temporal evolution of the atomic entanglement are discussed. The result shows that the two atoms are always in the entanglement state. Moreover, if and only if the two atoms are initially in the maximally entangled state, the entanglement evolution is not affected by the parameters, and the degree of entanglement is always kept as 1.
中图分类号: (Quantum mechanics)