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Simultaneous Cooling of Two Mechanical Resonators with Intracavity Squeezed Light
Author(s) -
Liu YuMu,
Cheng Jing,
Wang HongFu,
Yi Xuexi
Publication year - 2021
Publication title -
annalen der physik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.009
H-Index - 68
eISSN - 1521-3889
pISSN - 0003-3804
DOI - 10.1002/andp.202100074
Subject(s) - sideband , resonator , physics , coupling (piping) , coupling strength , dissipation , work (physics) , quantum , ground state , squeezed coherent state , optomechanics , quantum optics , phonon , nonlinear system , optical cavity , optics , quantum mechanics , quantum electrodynamics , condensed matter physics , coherent states , materials science , laser , microwave , metallurgy
A scheme is proposed to cool two mechanical resonators simultaneously to the quantum ground state, whatever sideband resolution, in an optomechanical system with χ (2) nonlinear medium, where the cavity light is squeezed. By selecting the system parameters appropriately, the influence from cavity dissipation can be completely removed and the quantum backaction heating is suppressed at the same time. It is found that the cooling performance is determined by the coupling strength and frequency detuning between two mechanical resonators. The numerical results indicate that the final phonon occupancy of the two mechanical resonators is no longer strictly limited by the sideband resolution and the cooling scheme can work well no matter in weak or strong effective optomechanical coupling regime.