Instabilities of wave function monopoles in Bose-Einstein condensates
Condensed Matter
2009-10-31 v1
Abstract
We present analytic and numerical results for a class of monopole solutions to the two-component Gross-Pitaevski equation for a two-species Bose condensate in an effectively two-dimensional trap. We exhibit dynamical instabilities involving vortex production as one species pours through another, from which we conclude that the sub-optical sharpness of potentials exerted by matter waves makes condensates ideal tools for manipulating condensates. We also show that there are two equally valid but drastically different hydrodynamic descriptions of a two-component condensate, and illustrate how different phenomena may appear simpler in each.
Keywords
Cite
@article{arxiv.cond-mat/9811147,
title = {Instabilities of wave function monopoles in Bose-Einstein condensates},
author = {Th. Busch and J. R. Anglin},
journal= {arXiv preprint arXiv:cond-mat/9811147},
year = {2009}
}
Comments
4 pages, 9 figures (compressed figures become legible when zoomed or when paper is actually printed)