Room-Temperature Steady-State Entanglement in a Four-Mode Optomechanical System

Stationary entanglement in a four-mode optomechanical system,especially under room-temperature,is discussed.In this scheme,when the coupling strengths between the two target modes and the mechanical resonator are equal,the results cannot be explained by the Bogoliubov-mode-based scheme.This is relat...

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Bibliographic Details
Published in:Communications in theoretical physics 2016-05, Vol.65 (5), p.596-600
Main Author: 王涛 张锐 苏雪梅
Format: Article
Language:English
Subjects:
Coupling
Entanglement
Resonators
Strength
Subspaces
Theoretical physics
Thermal noise
光机系统
室温
机械模式
稳态
纠缠
耦合强度
自由空间
量子力学
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Summary:Stationary entanglement in a four-mode optomechanical system,especially under room-temperature,is discussed.In this scheme,when the coupling strengths between the two target modes and the mechanical resonator are equal,the results cannot be explained by the Bogoliubov-mode-based scheme.This is related to the idea of quantummechanics-free subspace,which plays an important role when the thermal noise of the mechanical modes is considered.Significantly prominent steady-state entanglement can be available under room-temperature.
ISSN:0253-6102
1572-9494
DOI:10.1088/0253-6102/65/5/596