Phase transition from straight into twisted vortex-lines in dipolar Bose-Einstein condensates
Other Condensed Matter
2010-08-27 v1
Abstract
The non-local non-linearity introduced by the dipole-dipole interaction plays a crucial role in the physics of dipolar Bose-Einstein condensates. In particular, it may distort significantly the stability of straight vortex lines due to the rotonization of the Kelvin-wave spectrum. In this paper we analyze this instability showing that it leads to a second-order-like phase transition from a straight vortex-line into novel helical or snake-like configurations, depending on the dipole orientation.
Cite
@article{arxiv.0902.3058,
title = {Phase transition from straight into twisted vortex-lines in dipolar Bose-Einstein condensates},
author = {M. Klawunn and L. Santos},
journal= {arXiv preprint arXiv:0902.3058},
year = {2010}
}
Comments
11 pages, 6 figures, Accepted for publication in New J. Phys