d-wave collapse and explosion of a dipolar Bose-Einstein condensate
Other Condensed Matter
2008-08-22 v2
Abstract
We investigate the collapse dynamics of a dipolar condensate of 52Cr atoms when the s-wave scattering length characterizing the contact interaction is reduced below a critical value. A complex dynamics, involving an anisotropic, d-wave symmetric explosion of the condensate, is observed. The atom number decreases abruptly during the collapse. We find good agreement between our experimental results and those of a numerical simulation of the three-dimensional Gross-Pitaevskii equation, including contact and dipolar interactions as well as three-body losses. The simulation indicates that the collapse induces the formation of two vortex rings with opposite circulations.
Cite
@article{arxiv.0803.2442,
title = {d-wave collapse and explosion of a dipolar Bose-Einstein condensate},
author = {Thierry Lahaye and Jonas Metz and Bernd Froehlich and Tobias Koch and Maximilian Meister and Axel Griesmaier and Tilman Pfau and Hiroki Saito and Yuki Kawaguchi and Masahito Ueda},
journal= {arXiv preprint arXiv:0803.2442},
year = {2008}
}
Comments
4 pages, 4 figures