Entanglement dynamics and transfer in a double Jaynes-Cummings model

• 来源期刊: 科学通报(英文版)
• 学科: 物理学
• 关键词: 纠缠原子 双光子 动力学 s模型 转让 相互作用 参数范围 突然死亡
• 年，卷（期）: 2010,（17）
• 所属期刊栏目: ARTICLES
• 页码范围: 1758-1762
• 页数: 5页
• 分类号: O431.2 O431
• 语种: 英文

摘要

We study the entanglement dynamics for a double Jaynes-Cummings model where two entangled atoms A and B locally interact with independent cavities a and b, respectively, but there are no interactions between locations Aa and Bb. We point out that there exists a parameter range in which simultaneous pairwise entanglement sudden death (ESD) for remote parties, i.e. AB, ab, Ab and Ba, may occur. We show that during this simultaneous ESD period various multipartite entanglement can be created. Our results imply that the pairwise entanglement between two independent locations may be transferred into other multipartite forms which account for the correlations between the two independent locations.