Many-body tunneling dynamics of Bose-Einstein condensates and vortex states in two spatial dimensions
Quantum Gases
2015-10-29 v2
Abstract
In this work, we study the out-of-equilibrium many-body tunneling dynamics of a Bose-Einstein condensate in a two-dimensional radial double well. We investigate the impact of interparticle repulsion and compare the influence of angular momentum on the many-body tunneling dynamics. Accurate many-body dynamics are obtained by solving the full many-body Schr\"odinger equation. We demonstrate that macroscopic vortex states of definite total angular momentum indeed tunnel and that, even in the regime of weak repulsions, a many-body treatment is necessary to capture the correct tunneling dynamics. As a general rule, many-body effects set in at weaker interactions when the tunneling system carries angular momentum.
Keywords
Cite
@article{arxiv.1508.03238,
title = {Many-body tunneling dynamics of Bose-Einstein condensates and vortex states in two spatial dimensions},
author = {Raphael Beinke and Shachar Klaiman and Lorenz S. Cederbaum and Alexej I. Streltsov and Ofir E. Alon},
journal= {arXiv preprint arXiv:1508.03238},
year = {2015}
}
Comments
26 pages, 9 figures