Entanglement properties between two atoms in the binomial optical field interacting with two entangled atoms 被引量：1

Entanglement properties between two atoms in the binomial optical field interacting with two entangled atoms

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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. 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.

作者刘堂昆张康隆陶宇单传家刘继兵

机构地区 College of Physics and Electronic Science Hubei Engineering Profession Institute

出处《Chinese Physics B》 SCIE EI CAS CSCD 2016年第7期138-144,共7页 中国物理B（英文版）

基金 Project supported by the National Basic Research Program of China(Grant No.2012CB922103) the National Natural Science Foundation of China(Grant Nos.11274104 and 11404108)

关键词 quantum optics quantum entanglement binomial optical field negative eigenvalue quantum optics quantum entanglement binomial optical field negative eigenvalue

分类号 O413 [理学—理论物理]

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