Three-dimensional numerical simulation of long-lived quantum vortex knots and links in a trapped Bose-Einstein condensate
Quantum Gases
2019-01-04 v2 Pattern Formation and Solitons
Abstract
Dynamics of simplest vortex knots, unknots, and links of torus type inside an atomic Bose-Einstein condensate in anisotropic harmonic trap at zero temperature has been numerically simulated using three-dimensional Gross-Pitaevskii equation. The lifetime for such quasi-stationary rotating vortex structures has been found quite long in wide parametric domains of the system. This result is in qualitative agreement with a previous prediction based on a simplified one-dimensional model approximately describing dynamics of vortex filaments [V.P. Ruban, JETP 126, 397 (2018)].
Keywords
Cite
@article{arxiv.1809.07527,
title = {Three-dimensional numerical simulation of long-lived quantum vortex knots and links in a trapped Bose-Einstein condensate},
author = {Victor P. Ruban},
journal= {arXiv preprint arXiv:1809.07527},
year = {2019}
}
Comments
4 pages, 5 figures, English translation of Russian original accepted to JETP Letters