Protection of entanglement between two V-atoms in a multi-cavity coupling system

• 作者: Wen-Jin Huang Mao-Fa Fang Xiong Xu
• 来源期刊: 中国物理B（英文版）
• 年，卷（期）: 2022,（1）
• 所属期刊栏目: GENERAL
• 页码范围: 142-148
• 页数: 7页
• 语种: 英文
• DOI: 10.1088/1674-1056/ac0bb2

摘要

The protection of the entanglement between two V-atoms (EBTVA) in a multi-cavity coupling system is studied.The whole system consists of two V-atoms.The two V-atoms are initially in the maximum entangled state and interacts locally with its own dissipative cavity which is coupled to the extemal cavities with high quality factor (ECWHQF).The results show that,when there is no ECWHQF,the EBTVA can be protected effectively in the case where the V-atom and the dissipative cavity are weak coupled in large detuning,while when there are different numbers n of ECWHQF coupled to two dissipative cavities,by adjusting the parameters of the number n of ECWHQF and the coupling strength k between cavities,the EBTVA can be protected perfectly and continuously.Our result provides an effective method for protecting entanglement resources of three-level system.