Casimir-like force arising from quantum fluctuations in a slow-moving dilute Bose-Einstein condensate
Other Condensed Matter
2009-11-11 v3 Statistical Mechanics
Quantum Physics
Abstract
We calculate a force due to zero-temperature quantum fluctuations on a stationary object in a moving superfluid flow. We model the object by a localized potential varying only in the flow direction and model the flow by a three-dimensional weakly interacting Bose-Einstein condensate at zero temperature. We show that this force exists for any arbitrarily small flow velocity and discuss the implications for the stability of superfluid flow.
Keywords
Cite
@article{arxiv.cond-mat/0503706,
title = {Casimir-like force arising from quantum fluctuations in a slow-moving dilute Bose-Einstein condensate},
author = {D. C. Roberts and Y. Pomeau},
journal= {arXiv preprint arXiv:cond-mat/0503706},
year = {2009}
}
Comments
v3: revised discussion of toroidal geometry; replotted figure; minor editorial changes; quantitative and qualitative conclusions remain unchanged