Dynamics of bubbles in a two-component Bose-Einstein condensate
Quantum Gases
2015-05-20 v1
Abstract
The dynamics of a phase-separated two-component Bose-Einstein condensate are investigated, in which a bubble of one component moves through the other component. Numerical simulations of the Gross--Pitaevskii equation reveal a variety of dynamics associated with the creation of quantized vortices. In two dimensions, a circular bubble deforms into an ellipse and splits into fragments with vortices, which undergo the Magnus effect. The B\'enard--von K\'arm\'an vortex street is also generated. In three dimensions, a spherical bubble deforms into toruses with vortex rings. When two rings are formed, they exhibit leapfrogging dynamics.
Cite
@article{arxiv.1011.5578,
title = {Dynamics of bubbles in a two-component Bose-Einstein condensate},
author = {Kazuki Sasaki and Naoya Suzuki and Hiroki Saito},
journal= {arXiv preprint arXiv:1011.5578},
year = {2015}
}
Comments
6 pages, 7 figures