Cavity optomechanics with a trapped, interacting Bose-Einstein condensate
Abstract
The dispersive interaction of a Bose-Einstein condensate with a single mode of a high-finesse optical cavity realizes the radiation pressure coupling Hamiltonian. In this system the role of the mechanical oscillator is played by a single condensate excitation mode that is selected by the cavity mode function. We study the effect of atomic s-wave collisions and show that it merely renormalizes parameters of the usual optomechanical interaction. Moreover, we show that even in the case of strong harmonic confinement---which invalidates the use of Bloch states---a single excitation mode of the Bose-Einstein condensate couples significantly to the light field, that is the simplified picture of a single "mechanical" oscillator mode remains valid.
Cite
@article{arxiv.1303.2977,
title = {Cavity optomechanics with a trapped, interacting Bose-Einstein condensate},
author = {D. Nagy and G. Szirmai and P. Domokos},
journal= {arXiv preprint arXiv:1303.2977},
year = {2013}
}