Classical and Quantum Theory of Photothermal Cavity Cooling of a Mechanical Oscillator

Details Classical and Quantum Theory of Photothermal Cavity Cooling of a Mechanical Oscillator Classical and Quantum Theory of Photothermal Cavity Cooling of a Mechanical Oscillator

2010-11-17

arxiv.org/abs/1011.3911v1

C. R. Physique 12, 860-870 (2011)

Physics

Quantum Physics

27 pages, 3 figures

Scientific paper

10.1016/j.crhy.2011.02.005

Photothermal effects allow very efficient optomechanical coupling between mechanical degrees of freedom and photons. In the context of cavity cooling of a mechanical oscillator, the question of if the quantum ground state of the oscillator can be reached using photothermal back-action has been debated and remains an open question. Here we address this problem by complementary classical and quantum calculations. Both lead us to conclude that: first, the ground-state can indeed be reached using photothermal cavity cooling, second, it can be reached in a regime where the cavity detuning is small allowing a large amount of photons to enter the cavity.

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