中文摘要：

原子间纠缠的制备及其演化特性的研究对量子信息和量子网络的实现具有重要的意义．文章研究了压缩真空环境下双JC模型中两原子纠缠的演化，并讨论了不同初态、腔场的平均光子数和压缩角对纠缠的影响．结果表明：两原子初态的纠缠较强则任意时刻的纠缠也会较强；减小腔场的平均光子数可以延长纠缠存在的时间；腔场的压缩角对纠缠演化的影响比较微弱．

英文摘要：

The research about atom-atom entanglement preparation and its evolution is very important for the realization of quantum information and quantum network. We investigate the atom-atom entanglement dynamics of two Jaynes-Cummings atoms which are both interacting with squeezed vacuum field. And we discuss the effection of initial states,mean photon numbers and squeezed angles. It turned out that the en- tanglement strength is related with the initial state and the entanglement existence time can be prolonged by decreasing the mean photon number. The squeezed angle is not sensitive to the entanglement.