Three-vortex configurations in trapped Bose-Einstein condensates
Quantum Gases
2010-10-04 v3
Abstract
We report on the creation of three-vortex clusters in a Bose-Einstein condensate by oscillatory excitation of the condensate. This procedure can create vortices of both circulation, so that we are able to create several types of vortex clusters using the same mechanism. The three-vortex configurations are dominated by two types, namely, an equilateral-triangle arrangement and a linear arrangement. We interpret these most stable configurations respectively as three vortices with the same circulation, and as a vortex-antivortex-vortex cluster. The linear configurations are very likely the first experimental signatures of predicted stationary vortex clusters.
Cite
@article{arxiv.0907.1584,
title = {Three-vortex configurations in trapped Bose-Einstein condensates},
author = {J. A. Seman and E. A. L. Henn and M. Haque and R. F. Shiozaki and E. R. F. Ramos and M. Caracanhas and C. Castelo Branco and P. E. S. Tavares and F. J. Poveda-Cuevas and G. Roati and K. M. F. Magalhães and V. S. Bagnato},
journal= {arXiv preprint arXiv:0907.1584},
year = {2010}
}
Comments
4 pages, 4 figures