Resolvent method on the single-photon optomechanical cooling

We apply the method of the resolvent of Hamiltonian to investigate the mechanical cooling behavior in the single-photon optomechanical regime. This approach allows for a direct identification of the underlying physics processes, and the obtained transition rates clearly show the multiphonon involved...

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Bibliographic Details
Published in:Optics communications 2015-04, Vol.341, p.28-31
Main Authors: Yi, Zhen, Gu, Wen-ju, Wei, Su-juan, Xu, Da-hai
Format: Article
Language:English
Subjects:
Cooling
Joining
Mechanical oscillators
Nonthermal state
Oscillators
Resolvent of Hamiltonian
Single-photon optomechanics
Steady state
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Summary:We apply the method of the resolvent of Hamiltonian to investigate the mechanical cooling behavior in the single-photon optomechanical regime. This approach allows for a direct identification of the underlying physics processes, and the obtained transition rates clearly show the multiphonon involved processes. We resort to the Mandel Q parameter to study the statistical properties of the steady state of mechanical oscillator, and find that when the optomechanical coupling is weak, the oscillator is in a thermal state, while when the optomechanical coupling is strong, the multiple-phonon transitions begin to work, leading the oscillator to be in a nonthermal state.
ISSN:0030-4018
1873-0310
DOI:10.1016/j.optcom.2014.12.011