Suppression of Stokes heating processes and improved optomechanical cooling with frequency modulation

作     者：Yang Bao Qinghong Liao Qingmin Zhao Jing Wu Yang Bao;Qinghong Liao;Qingmin Zhao;Jing Wu

作者机构：Department of Electronic Information EngineeringNanchang UniversityNanchang 330031China State Key Laboratory of Low-Dimensional Quantum PhysicsDepartment of PhysicsFrontier Science Center for Quantum InformationTsinghua UniversityBeijing 100084China 

出 版 物：《Communications in Theoretical Physics》 (理论物理通讯（英文版）)

年 卷 期：2022年第74卷第4期

页      面：42-51页

核心收录：

学科分类：07[理学] 070201[理学-理论物理] 0702[理学-物理学] 

基　　金：supported by the National Natural Science Foundation of China(Grant No.62061028) the Foundation for Distinguished Young Scientists of Jiangxi Province(Grant No.20162BCB23009) the Open Research Fund Program of the State Key Laboratory of Low-Dimensional Quantum Physics(Grant No.KF202010) the Interdisciplinary Innovation Fund of Nanchang University(Grant No.9166-27060003-YB12) the Open Research Fund Program of Key Laboratory of Opto-Electronic Information Acquisition and Manipulation of Ministry of Education(Grant No.OEIAM202004) 

主　　题：ground-state cooling Stokes heating processes frequency modulation unresolved sideband 

摘      要：Ground-state cooling of mesoscopic mechanical objects is still a major challenge in the unresolved-sideband *** present a frequency modulation(FM)scheme to achieve cooling of the mechanical resonator to its ground-state in a double-cavity optomechanical system containing a mechanical *** mean phonon number is determined by numerically solving a set of differential equations derived from the quantum master *** to efficient suppression of Stokes heating processes in the presence of FM,the ground-state cooling,indicated by numerical calculations,is significantly achievable,regardless of whether in the resolved-sideband regime or the unresolved-sideband ***,by choosing parameters reasonably,the improvement of the quantum cooling limit is found to be capable of being positively correlated with the modulation *** method provides new insight into quantum manipulation and creates more possibilities for applications of quantum devices.