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arXiv · 1005.4085

Tunable Cavity Optomechanics with Ultracold Atoms

T. P. Purdy·D. W. C. Brooks·T. Botter·N. Brahms·Z. -Y. Ma·D. M. Stamper-Kurn
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Abstract

We present an atom-chip-based realization of quantum cavity optomechanics with cold atoms localized within a Fabry-Perot cavity. Effective sub-wavelength positioning of the atomic ensemble allows for tuning the linear and quadratic optomechanical coupling parameters, varying the sensitivity to the displacement and strain of a compressible gaseous cantilever. We observe effects of such tuning on cavity optical nonlinearity and optomechanical frequency shifts, providing their first characterization in the quadratic-coupling regime.

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T. P. Purdy, D. W. C. Brooks, T. Botter, N. Brahms, Z. -Y. Ma, D. M. Stamper-Kurn. 2010-05-21. Tunable Cavity Optomechanics with Ultracold Atoms. https://doi.org/10.1103/physrevlett.105.133602

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