Trapping and Cooling a mirror to its quantum mechanical ground state

Details Trapping and Cooling a mirror to its quantum mechanical ground state Trapping and Cooling a mirror to its quantum mechanical ground state

2007-04-18

arxiv.org/abs/0704.2425v1

Physics

Quantum Physics

5 pages, 1 figure

Scientific paper

10.1103/PhysRevLett.99.073601

We propose a technique aimed at cooling a harmonically oscillating mirror to its quantum mechanical ground state starting from room temperature. Our method, which involves the two-sided irradiation of the vibrating mirror inside an optical cavity, combines several advantages over the two-mirror arrangements being used currently. For comparable parameters the three-mirror configuration provides a stiffer trap for the oscillating mirror. Furthermore it prevents bistability from limiting the use of higher laser powers for mirror trapping, and also partially does so for mirror cooling. Lastly, it improves the isolation of the mirror from classical noise so that its dynamics are perturbed mostly by the vacuum fluctuations of the optical fields. These improvements are expected to bring the task of achieving ground state occupation for the mirror closer to completion.

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