Ground-state cooling of mechanical motion in the unresolved sideband regime by use of optomechanically induced transparency

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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Date
2014
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Language
en
Pages
1-14
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PHYSICAL REVIEW A, Volume 90, issue 1
Abstract
We present a scheme for cooling mechanical motion to the ground state in an optomechanical system. Unlike standard sideband cooling, this scheme applies to the so-called unresolved sideband regime, where the resonance frequency of the mechanical mode is much smaller than the cavity linewidth. Ground-state cooling becomes possible when assuming the presence of an additional, auxiliary mechanical mode and exploiting the effect of optomechanically induced transparency. We first consider a system where one optical cavity interacts with two mechanical modes and show that ground-state cooling of the unresolved mechanical mode is possible when the auxiliary mode is in the resolved sideband regime. We then present a modified setup involving two cavity modes, where both mechanical modes are allowed to be in the unresolved sideband regime.
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Ojanen , T & Borkje , K 2014 , ' Ground-state cooling of mechanical motion in the unresolved sideband regime by use of optomechanically induced transparency ' , Physical Review A , vol. 90 , no. 1 , 013824 , pp. 1-14 . https://doi.org/10.1103/PhysRevA.90.013824