Two-fluid model of a Bose-Einstein condensate in the cavity optomechanical regime
Quantum Gases
2009-11-18 v1 Quantum Physics
Abstract
We analyze an atomic Bose-Einstein condensate trapped in a high-Q optical cavity driven by a feeble optical field, a situation formally analogous to the central paradigm of cavity optomechanics [Brennecke et al., Science, 322, 235 (2008)]. We account for two-body interactions via a two-fluid model that retains the intuitive appeal of the optomechanical two-mode description. The Bogoliubov excitation spectrum of this system comprises a gapped upper branch and a lower branch that can include an unstable excitation mode.
Keywords
Cite
@article{arxiv.0911.3234,
title = {Two-fluid model of a Bose-Einstein condensate in the cavity optomechanical regime},
author = {Daniel S. Goldbaum and Keye Zhang and Pierre Meystre},
journal= {arXiv preprint arXiv:0911.3234},
year = {2009}
}
Comments
4 pages, 3 figures