Nonreciprocal ground-state cooling of mechanical resonator in a spinning optomechanical system
Junya Yang , Chengsong Zhao , Zhen Yang , Rui Peng , Shilei Chao , Ling Zhou
Front. Phys. ›› 2022, Vol. 17 ›› Issue (5) : 52507
Nonreciprocal ground-state cooling of mechanical resonator in a spinning optomechanical system
We theoretically present a scheme for nonreciprocal ground-state cooling in a double-cavity spinning optomechanical system which is consisted of an optomechanical resonator and a spinning optical harmonic resonator with directional driving. The optical Sagnac effect generated by the whispering-gallery cavity (WGC) rotation creates frequency difference between the WGC mode, we found that the mechanical resonator (MR) can be cooled to the ground state when the propagation direction of driving light is opposite to the spin direction of the WGC, but not from the other side, vice versa, so that the nonreciprocal cooling is achieved. By appropriately selecting the system parameters, the heating process can be completely suppressed due to the quantum interference effect. The proposed approach provides a platform for quantum manipulation of macroscopic mechanical devices beyond the resolved sideband limit.
nonreciprocal ground-state cooling / spinning optomechanical system / optical Sagnac effect
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Higher Education Press
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