Optomechanically-induced-transparency cooling of massive mechanical resonators to the quantum ground state
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- Liu, YC., Xiao, YF., Luan, X. et al. Sci. China Phys. Mech. Astron. (2015) 58: 1. doi:10.1007/s11433-014-5635-6
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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/κ as low as ∼ 0.003. This provides a new route for quantum manipulation of massive macroscopic devices and high-precision measurements.