典型文献
Suppression of Stokes heating processes and improved optomechanical cooling with frequency modulation
文献摘要：
Ground-state cooling of mesoscopic mechanical objects is still a major challenge in the unresolved-sideband regime.We 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 resonator.The mean phonon number is determined by numerically solving a set of differential equations derived from the quantum master equations.Due 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 regime.Furthermore,by choosing parameters reasonably,the improvement of the quantum cooling limit is found to be capable of being positively correlated with the modulation frequency.This method provides new insight into quantum manipulation and creates more possibilities for applications of quantum devices.
文献关键词：
中图分类号：
作者姓名：
Yang Bao;Qinghong Liao;Qingmin Zhao;Jing Wu
作者机构：
Department of Electronic Information Engineering,Nanchang University,Nanchang 330031,China;State Key Laboratory of Low-Dimensional Quantum Physics,Department of Physics,Frontier Science Center for Quantum Information,Tsinghua University,Beijing 100084,China
文献出处：
引用格式：
[1]Yang Bao;Qinghong Liao;Qingmin Zhao;Jing Wu-.Suppression of Stokes heating processes and improved optomechanical cooling with frequency modulation)[J].理论物理,2022(04):42-51
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AB值：
0.584825
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