Phonon-polaritons in Bose-Einstein condensates induced by Casimir-Polder interaction with graphene
Quantum Gases
2015-06-11 v1
Abstract
We consider the mechanical coupling between a two-dimensional Bose-Einstein condensate with a graphene sheet via the vacuum fluctuations of the electromagnetic field which are at the origin of the so-called Casimir-Polder potential. By deriving a self-consistent set of equations governing the dynamics of the condensate and the flexural (out-of-plane) modes of the graphene, we can show the formation of a new type of purely acoustic quasi-particle excitation, a phonon-polariton resulting from the coherent superposition of quanta of flexural and Bogoliubov modes.
Keywords
Cite
@article{arxiv.1409.7801,
title = {Phonon-polaritons in Bose-Einstein condensates induced by Casimir-Polder interaction with graphene},
author = {H. Terças and S. Ribeiro and J. T. Mendonça},
journal= {arXiv preprint arXiv:1409.7801},
year = {2015}
}
Comments
6+epsilon pages, 4 figures