Exact exact solutions of the Gross-Pitaevskii equation for stable vortex modes
Exact exact solutions of the Gross-Pitaevskii equation for stable vortex modes
We construct exact solutions of the Gross-Pitaevskii equation for solitary vortices, and approximate ones for fundamental solitons, in 2D models of Bose-Einstein condensates with a spatially modulated nonlinearity of either sign and a harmonic trapping potential. The number of vortex-soliton (VS) modes is determined by the discrete energy spectrum of a related linear Schr\"{o}dinger equation. The VS families in the system with the attractive and repulsive nonlinearity are mutually complementary. \emph{% Stable} VSs with vorticity $S\geq 2$ and those corresponding to higher-order radial states are reported for the first time, in the case of the attraction and repulsion, respectively.
Jie-Fang Zhang、Lei Wu、Boris A. Malomed、Dumitru Mihalache、Lu Li、W. M. Liu
物理学
Jie-Fang Zhang,Lei Wu,Boris A. Malomed,Dumitru Mihalache,Lu Li,W. M. Liu.Exact exact solutions of the Gross-Pitaevskii equation for stable vortex modes[EB/OL].(2010-06-18)[2025-08-02].https://arxiv.org/abs/1006.3695.点此复制
评论