Optomechanical Cooling of a Macroscopic Oscillator by Homodyne Feedback
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🪐 quant-ph
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feedbackhomodyneoptomechanicaloscillatorquadratureapplyingbelowcooled
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We propose a simple optomechanical model in which a mechanical oscillator quadrature could be "cooled" well below its equilibrium temperature by applying a suitable feedback to drive the orthogonal quadrature by means of the homodyne current of the radiation field used to probe its position.
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Cited by 1 Pith paper
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True and apparent motion of optomechanical resonators, with applications to feedback cooling of gravitational wave detector test masses
Extends prior two-photon formalism to compute true motion and optimal cooling in multi-DOF GW detector test masses, finding sub-unity occupation numbers possible over the oscillator bandwidth for common definitions.
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