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



Autor: T.P. Purdy, D.W.C. Brooks, T. Botter, N. Brahms, Z.-Y. Ma, D.M. Stamper-Kurn

Fuente: https://arxiv.org/







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