中国物理B ›› 2019, Vol. 28 ›› Issue (5): 50302-050302.doi: 10.1088/1674-1056/28/5/050302

• GENERAL • 上一篇    下一篇

Dynamics of two levitated nanospheres nonlinearly coupling with non-Markovian environment

Xun Li(李逊), Biao Xiong(熊标), Shilei Chao(晁石磊), Jiasen Jin(金家森), Ling Zhou(周玲)   

  1. School of Physics, Dalian University of Technology, Dalian 116026, China
  • 收稿日期:2019-01-06 修回日期:2019-03-11 出版日期:2019-05-05 发布日期:2019-05-05
  • 通讯作者: Jiasen Jin, Ling Zhou E-mail:jsjin@dlut.edu.cn;zhlhxn@dlut.edu.cn
  • 基金资助:

    Project supported by the National Natural Science Foundation of China (Grant Nos. 11874099, 11605022, 11775040, 11747317, and 11474044).

Dynamics of two levitated nanospheres nonlinearly coupling with non-Markovian environment

Xun Li(李逊), Biao Xiong(熊标), Shilei Chao(晁石磊), Jiasen Jin(金家森), Ling Zhou(周玲)   

  1. School of Physics, Dalian University of Technology, Dalian 116026, China
  • Received:2019-01-06 Revised:2019-03-11 Online:2019-05-05 Published:2019-05-05
  • Contact: Jiasen Jin, Ling Zhou E-mail:jsjin@dlut.edu.cn;zhlhxn@dlut.edu.cn
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Grant Nos. 11874099, 11605022, 11775040, 11747317, and 11474044).

摘要:

The dynamics of two nanospheres nonlinearly coupling with non-Markovian reservoir is investigated. A master equation of the two nanospheres is derived by employing quantum state diffusion method. It is shown that the nonlinear coupling can improve the non-Markovianity. Due to the sharing of the common non-Markovian environment, the state transfer between the two nanospheres can be realized. The entanglement and the squeezing of the individual mode, as well as the jointed two-mode are analyzed. The present system can be realized by trapping two nanospheres in a wideband cavity, which might provide a method to study adjustable non-Markovian dynamics of mechanical motion.

关键词: non-Markovianity, levitated nanospheres, nonlinearity

Abstract:

The dynamics of two nanospheres nonlinearly coupling with non-Markovian reservoir is investigated. A master equation of the two nanospheres is derived by employing quantum state diffusion method. It is shown that the nonlinear coupling can improve the non-Markovianity. Due to the sharing of the common non-Markovian environment, the state transfer between the two nanospheres can be realized. The entanglement and the squeezing of the individual mode, as well as the jointed two-mode are analyzed. The present system can be realized by trapping two nanospheres in a wideband cavity, which might provide a method to study adjustable non-Markovian dynamics of mechanical motion.

Key words: non-Markovianity, levitated nanospheres, nonlinearity

中图分类号:  (Decoherence; open systems; quantum statistical methods)

  • 03.65.Yz
42.50.Lc (Quantum fluctuations, quantum noise, and quantum jumps) 42.50.-p (Quantum optics)