Double-passage ground-state cooling induced by quantum interference in the hybrid optomechanical system

被引：0
作者：
Lingchao Li
Ren-Hua Luo
Longjiang Liu
Shuo Zhang
Jian-Qi Zhang
机构：
[1] Henan University of Technology,College of Science
[2] Hubei Electric Engineering Corporation (POWERCHINA HEEC),State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics
[3] Zhengzhou Information Science and Technology Institute,undefined
[4] Wuhan Institute of Physics and Mathematics,undefined
[5] Chinese Academy of Sciences,undefined
[6] and Wuhan National Laboratory for Optoelectronics,undefined
来源：
Scientific Reports | / 8卷
关键词：
Quantum Interference Effects; Cavity Optomechanics; Nano-mechanical Resonators (NAMR); Atom-cavity Coupling; Atomic Ensemble;
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摘要：
We propose a quantum interference cooling scheme for a nano-mechanical resonator (NAMR) in a hybrid optomechanical system. In our scheme, atoms are trapped in an optomechanical cavity, and this optomechanical cavity interacts both atoms and an optical cavity. Therefore, the absorption of the optomechanical resonator can be modified by quantum interference effects induced by the atom-cavity and cavity-cavity couplings. With the modification of the quantum interference, the desired transition for cooling is enhanced, while the undesired transition for heating can be suppressed. As a result, the NAMR vibration can be cooled down to its ground state. Particularly, with the assistance of the atoms, the experimental difficulty can be reduced since the effective decay rate of the cavity can be decreased via the quantum interference for the atom-cavity coupling.
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