Acta Optica Sinica, Volume. 40, Issue 18, 1827001(2020)
Ground-State Cooling of Mechanical Resonator in Three-Laguerre-Gaussian-Cavity
To cool a mechanical resonator to its ground-state is the key to realize the quantum manipulation of this mechanical resonator. We propose a cooling method based on electromagnetically-induced-transparency (EIT) and investigate the ground-state cooling of a mechanical resonator in a three-Laguerre-Gaussian-cavity optomechanical system, where two auxiliary cavities are coupled to the original one in the standard optomechanical system, respectively. When the optimal parameters are chosen, the optical fluctuation spectrum changes from Lorentzian shape to EIT-like one in a three-level atomic system. The asymmetry between cooling and heating rates makes it possible to realize the ground-state cooling of a mechanical resonator. The research results here provide a theoretical guidance for the cooling of mechanical resonators in three-Laguerre-Gaussian-cavity systems.
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Jing Wang. Ground-State Cooling of Mechanical Resonator in Three-Laguerre-Gaussian-Cavity[J]. Acta Optica Sinica, 2020, 40(18): 1827001
Category: Quantum Optics
Received: Apr. 20, 2020
Accepted: Jun. 11, 2020
Published Online: Aug. 27, 2020
The Author Email: Wang Jing (pwl1207wj@163.com)