Spectrometric reconstruction of mechanical-motional states in optomechanics

Jie-Qiao Liao and Franco Nori
Phys. Rev. A 90, 023851 – Published 26 August 2014

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 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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  • Received 27 April 2014

DOI:https://doi.org/10.1103/PhysRevA.90.023851

©2014 American Physical Society

Authors & Affiliations

Jie-Qiao Liao1 and Franco Nori1,2

  • 1CEMS, RIKEN, Saitama 351-0198, Japan
  • 2Department of Physics, The University of Michigan, Ann Arbor, Michigan 48109-1040, USA

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Issue

Vol. 90, Iss. 2 — August 2014

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