Enhancing stationary entanglement between two optomechanical oscillators by Coulomb interaction with Kerr medium

doi:10.1088/1674-1056/abff3e

中国物理B ›› 2021, Vol. 30 ›› Issue (12): 124201-124201.doi: 10.1088/1674-1056/abff3e

Enhancing stationary entanglement between two optomechanical oscillators by Coulomb interaction with Kerr medium

Tian-Le Yang(杨天乐), Chen-Long Zhu(朱陈龙), Sheng Liu(刘声), and Ye-Jun Xu(许业军)^†

International Research Center of Quantum Information and Photoelectric Information, School of Mechanical and Electronic Engineering, Chizhou University, Chizhou 247000, China

收稿日期:2021-03-14 修回日期:2021-04-24 接受日期:2021-05-10 出版日期:2021-11-15 发布日期:2021-11-15
通讯作者: Ye-Jun Xu E-mail:yejunxu@126.com
基金资助:
Project supported by the National Natural Science Foundation of China (Grant No. 11704051).

Enhancing stationary entanglement between two optomechanical oscillators by Coulomb interaction with Kerr medium

Tian-Le Yang(杨天乐), Chen-Long Zhu(朱陈龙), Sheng Liu(刘声), and Ye-Jun Xu(许业军)^†

International Research Center of Quantum Information and Photoelectric Information, School of Mechanical and Electronic Engineering, Chizhou University, Chizhou 247000, China

Received:2021-03-14 Revised:2021-04-24 Accepted:2021-05-10 Online:2021-11-15 Published:2021-11-15
Contact: Ye-Jun Xu E-mail:yejunxu@126.com
Supported by:
Project supported by the National Natural Science Foundation of China (Grant No. 11704051).

摘要/Abstract

摘要： We theoretically study the stationary entanglement of two charged nanomechanical oscillators coupling via Coulomb interaction in an optomechanical system with an additional Kerr medium. We show that the degree of entanglement between two nanomechanical oscillators is suppressed by Kerr interaction due to photon blockade and enhanced by Coulomb coupling strength. We also show other parameters for adjusting and obtaining entanglement, such as the driving power and the frequencies of the two oscillators, and the entanglement is robust against temperature. Our study proves a way for adjusting stationary entanglement between two optomechanical oscillators by Coulomb interaction and Kerr medium.

关键词: entanglement, Kerr interaction, Coulomb interaction, optomechanics

Abstract: We theoretically study the stationary entanglement of two charged nanomechanical oscillators coupling via Coulomb interaction in an optomechanical system with an additional Kerr medium. We show that the degree of entanglement between two nanomechanical oscillators is suppressed by Kerr interaction due to photon blockade and enhanced by Coulomb coupling strength. We also show other parameters for adjusting and obtaining entanglement, such as the driving power and the frequencies of the two oscillators, and the entanglement is robust against temperature. Our study proves a way for adjusting stationary entanglement between two optomechanical oscillators by Coulomb interaction and Kerr medium.

Key words: entanglement, Kerr interaction, Coulomb interaction, optomechanics

中图分类号: (Cavity quantum electrodynamics; micromasers)

42.50.Pq

03.65.Ud (Entanglement and quantum nonlocality) 42.50.Dv (Quantum state engineering and measurements)

Tian-Le Yang(杨天乐), Chen-Long Zhu(朱陈龙), Sheng Liu(刘声), and Ye-Jun Xu(许业军). Enhancing stationary entanglement between two optomechanical oscillators by Coulomb interaction with Kerr medium[J]. 中国物理B, 2021, 30(12): 124201-124201.

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Enhancing stationary entanglement between two optomechanical oscillators by Coulomb interaction with Kerr medium

Enhancing stationary entanglement between two optomechanical oscillators by Coulomb interaction with Kerr medium

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