两纠缠二能级原子与单模光场相互作用的纠缠 动力学过程研究.pdf

Modern Physics 现代物理, 2017, 7(6), 235-241 Published Online November 2017 in Hans. /journal/mp /10.12677/mp.2017.76027 Dynamics of Entanglement of Two Entangled Two-Level Atoms Interacted with Single-Mode Field Xiaomei Sun, Qiao Liu, Youzhi Liu, Yanliang Zhang College of Software, Jishou University, Zhangjiajie Hunan th th th Received: Oct. 29 , 2017; accepted: Nov. 12 , 2017; published: Nov. 20 , 2017 Abstract The influence of dipole-dipole interactions between the two two-level entangled atoms for dy- namics of quantum entanglement is studied in the system of matter-field interaction in quantum optics. The results show that the dipole-dipole interaction is capable to suppress dynamics of quantum entanglement (concurrence). If we have no regard for the dipole-dipole interaction, the dynamic of quantum entanglement is periodic oscillation including two different frequencies. Meanwhile, the frequency is decreasing with the increasing of the dipole-dipole interaction. When this interaction is much larger than that between the atoms and independent the single-mode field (modeled as extern environment), the process of dynamic of quantum entanglement is cosine os- cillation with frequency 2πΩ 6g . ( ) Keywords Dynamics of Quantum Entanglement, Entangled Two-Level Atoms, Dipole-Dipole Interaction 两纠缠二能级原子与单模光场相互作用的纠缠 动力学过程研究 孙晓梅，刘 巧，刘有志，张延亮 吉首大学，软件学院，湖南 张家界 收稿日期：2017年10月29 日；录用日期：2017年11月12 日；发布日期：2017年11月20 日 文章引用: 孙晓梅, 刘巧, 刘有志, 张延亮. 两纠缠二能级原子与单模光场相互作用的纠缠动力学过程研究[J]. 现代 物理, 2017, 7(6): 235-241. DOI: 10.12677/mp.2017.76027 孙晓梅 等 摘 要 在光原子相互作用系统中，考虑两二能级原子间的偶极–偶极相互