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Open Quantum Systems Decoherence

Self-cooling of a movable mirror to the ground state using radiation pressure

arXiv

Authors: Aurelien Dantan, Claudiu Genes, David Vitali, Michel Pinard

Year

2007

Paper ID

49675

Status

Preprint

Abstract Read

~2 min

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Abstract

We show that one can cool a micro-mechanical oscillator to its quantum ground state using radiation pressure in an appropriately detuned cavity (self-cooling). From a simple theory based on Heisenberg-Langevin equations we find that optimal self-cooling occurs in the good cavity regime, when the cavity bandwidth is smaller than the mechanical frequency, but still larger than the effective mechanical damping. In this case the intracavity field and the vibrational mechanical mode coherently exchange their fluctuations. We also present dynamical calculations which show how to access the mirror final temperature from the fluctuations of the field reflected by the cavity.

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We show that one can cool a micro-mechanical oscillator to its quantum ground state using radiation pressure in an appropriately detuned cavity (self-cooling).

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References & Citation Signals

[1] DOI https://doi.org/arXiv:0707.2038 [2] arXiv https://arxiv.org/abs/0707.2038 [3] Publisher https://arxiv.org/abs/0707.2038

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