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
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.
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 2021 Chin. Phys. B 30 124201
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