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arXiv · 1404.3364

Spectrometric reconstruction of mechanical-motional states in optomechanics

Jie-Qiao Liao·Franco Nori
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Abstract

We propose a spectrometric method to reconstruct the motional states of mechanical modes in optomechanics. This is achieved by detecting the single-photon emission and scattering spectra of the optomechanical cavity. Owing to an optomechanical coupling, the \emph{a priori} phonon-state distributions contribute to the spectral magnitude, and hence we can infer information on the phonon states from the measured spectral data. When the single-photon optomechanical-coupling strength is moderately larger than the mechanical frequency, then our method works well for a wide range of cavity-field decay rates, irrespective of whether or not the system is in the resolved-sideband regime.

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Jie-Qiao Liao, Franco Nori. 2014-08-27. Spectrometric reconstruction of mechanical-motional states in optomechanics. https://doi.org/10.1103/physreva.90.023851

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