The Roton in a Bose-Einstein Condensate
Soft Condensed Matter
2007-05-23 v2
Abstract
The roton in a Bose-Einstein condensate is computed, both near and far from a Feshbach resonance. A low-density approximation is made, allowing for an analytic result. A Monte Carlo calculation shows that the roton is larger than predicted by the low-density approximation, for the upper range of densities considered here. The low-density approximation is applied to superfluid 4He, roughly reproducing the results of previous Monte Carlo calculations.
Cite
@article{arxiv.cond-mat/0303375,
title = {The Roton in a Bose-Einstein Condensate},
author = {J. Steinhauer and R. Ozeri and N. Katz and N. Davidson},
journal= {arXiv preprint arXiv:cond-mat/0303375},
year = {2007}
}
Comments
This version has an improved pair function