Ground state cooling of massive mechanical objects remains a difficult task restricted by the unresolved mechanical sidebands. We propose an optomechanically-induced-transparency cooling scheme to achieve ground state...Ground state cooling of massive mechanical objects remains a difficult task restricted by the unresolved mechanical sidebands. We propose an optomechanically-induced-transparency cooling scheme to achieve ground state cooling of mechanical motion without the resolved sideband condition in a pure optomechanical system with two mechanical modes coupled to the same optical cavity mode. We show that ground state cooling is achievable for sideband resolution ωm/k as low as - 0.003. This provides a new route for quantum manipulation of massive macroscopic devices and high-precision measurements.展开更多
基金supported by the National Basic Research Program of China(Grant Nos.2013CB328704 and 2013CB921904)the National Natural Science Foundation of China(Grant Nos.11474011,11222440 and 61435001)+1 种基金the Research Fund for the Doctoral Program of Higher Education of China(Grant No.20120001110068)the Optical Radiation Cooling and Heating in Integrated Devices Program of Defense Advanced Research Projects Agency(Grant No.C11L10831)
文摘Ground state cooling of massive mechanical objects remains a difficult task restricted by the unresolved mechanical sidebands. We propose an optomechanically-induced-transparency cooling scheme to achieve ground state cooling of mechanical motion without the resolved sideband condition in a pure optomechanical system with two mechanical modes coupled to the same optical cavity mode. We show that ground state cooling is achievable for sideband resolution ωm/k as low as - 0.003. This provides a new route for quantum manipulation of massive macroscopic devices and high-precision measurements.
