文献类型：期刊文献

中文题名：两个耦合原子与充满Kerr介质压缩真空场拉曼相互作用系统中的纠缠动力学

英文题名：Entanglement Dynamics in the System of Two Coupled Atoms Raman-interacting with Squeezed Vacuum Field with the Kerr Medium

作者：谢钦[1];黄江[1]

机构：[1]广东海洋大学电子与信息工程学院,湛江524088

年份：2019

卷号：0

期号：4

起止页码：353

中文期刊名：量子光学学报

外文期刊名：Journal of Quantum Optics

收录：北大核心2017、北大核心

基金：广东省自然科学基金(2015A030310354);广东海洋大学优秀年轻骨干教师基金(2017005);南海学者特色创新规划基金(Q18267).

语种：中文

中文关键词：纠缠动力学;耦合参数;Kerr介质;拉曼相互作用;Concurrence

外文关键词：entanglement;coupling parameter;Kerr medium;Raman-interacting;Concurrence

中文摘要：通过Concurrence研究了充满Kerr介质的单模压缩真空场与两个耦合原子拉曼相互作用系统中的纠缠动力学。使用数值方法,讨论了纠缠与耦合参数、初始压缩系数和Kerr介质之间的关系。在这篇文章中,我们提出了几个有意思的结论:首先,当原子的偶极-偶极相互作用较弱时,Concurrence发生了周期性坍塌和复活的现象,而随着相互作用越来越强,坍塌和复活的现象消失,Concurrence出现了像Rabi频率一样更复杂的振荡;其次,原子的Concurrence随着初始压缩系数r的增加而增强;此外,我们发现可以通过调节和控制NIKM的强度尽可能地接近最大纠缠。

外文摘要：Entanglement dynamics in the system of two coupling atoms with a single-mode squeezed vacuum field with the Kerr medium is studied by means of Concurrence.Using the numerical method,the relation between the entanglement and the coupling parameter,the initial compressibility factor and the Kerr medium of the system is discussed.In this letter,it is worth noting that there are several appealing conclusions raised by us:First,dipole-dipole interaction of the atoms is weak,and the phenomenon of collapse-and-revival periodically of the concurrence seems to occur.As the interaction grows stronger,the phenomenon of collapse-and-revival disappeares and the concurrence arises more complex oscillates as Rabi;Second,the concurrence of atoms increases with increasing the initial compressibility factor r;Third,we can be near to the maximum entanglement as much as possible via modulation and control of the strength of the NIKM.So,our observations might be useful for quantum information processing based on the entanglement.