Ground-state cooling based on a three-cavity optomechanical system in the unresolved-sideband regime  

作　　者：Jing Wang 王婧(College of Physics,Tonghua Normal University,Tonghua 134000,China)

机构地区：[1]College of Physics,Tonghua Normal University,Tonghua 134000,China

出　　处：《Chinese Physics B》2021年第2期298-303,共6页中国物理B（英文版）

基　　金：Project supported by the Research Fund of Tonghua Normal University(Grant No.202017ND)。

摘　　要：In the unresolved sideband regime,we propose a scheme for cooling mechanical resonator close to its ground state in a three-cavity optomechanical system,where the auxiliary cavities are indirectly connected with the mechanical resonator through standard optomechanical subsystem.The standard optomechanical subsystem is driven by a strong pump laser field.With the help of the auxiliary cavities,the heating process is suppressed and the cooling process of the mechanical resonator is enhanced.More importantly,the average phonon number is much less than 1 in a larger range.This means that the mechanical resonator can be cooled down to its ground state.All these interesting features will significantly promote the physical realization of quantum effects in multi-cavity optomechanical systems.

关 键 词：ground-state cooling three-cavity optomechanical system unresolved sideband regime 

分 类 号：TN751.2[电子电信—电路与系统]