Rotons in gaseous Bose-Einstein condensates irradiated by a laser
Soft Condensed Matter
2009-11-10 v1
Abstract
A gaseous Bose-Einstein condensate (BEC) irradiated by a far off-resonance laser has long-range interatomic correlations caused by laser-induced dipole-dipole interactions. These correlations, which are tunable via the laser intensity and frequency, can produce a `roton' minimum in the excitation spectrum--behavior reminiscent of the strongly correlated superfluid liquid helium II.
Keywords
Cite
@article{arxiv.cond-mat/0301028,
title = {Rotons in gaseous Bose-Einstein condensates irradiated by a laser},
author = {D. H. J. O'Dell and S. Giovanazzi and G. Kurizki},
journal= {arXiv preprint arXiv:cond-mat/0301028},
year = {2009}
}
Comments
6 pages, includes 3 figures