Svortices and the fundamental modes of the "snake instability": Possibility of observation in the gaseous Bose-Einstein Condensate
| dc.creator | Brand, Joachim | |
| dc.creator | Reinhardt, William P. | |
| dc.date | 2001-05-30 | |
| dc.date.accessioned | 2026-07-07T02:41:36Z | |
| dc.date.available | 2026-07-07T02:41:36Z | |
| dc.description | The connection between quantized vortices and dark solitons in a long and thin, waveguide-like trap geometry is explored in the framework of the non-linear Schrödinger equation. Variation of the transverse confinement leads from the quasi-1D regime where solitons are stable to 2D (or 3D) confinement where soliton stripes are subject to a transverse modulational instability known as the ``snake instability''. We present numerical evidence of a regime of intermediate confinement where solitons decay into single, deformed vortices with solitonic properties, also called svortices, rather than vortex pairs as associated with the ``snake'' metaphor. Further relaxing the transverse confinement leads to production of 2 and then 3 vortices, which correlates perfectly with a Bogoliubov-de Gennes stability analysis. The decay of a stationary dark soliton (or, planar node) into a single svortex is predicted to be experimentally observable in a 3D harmonically confined dilute gas Bose-Einstein condensate. | |
| dc.description | 4 pages, 4 figures | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0105581 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0105581 | |
| dc.identifier | Phys. Rev. A 65, 043612 (2002) | |
| dc.identifier | doi:10.1103/PhysRevA.65.043612 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/17805 | |
| dc.subject | Soft Condensed Matter | |
| dc.title | Svortices and the fundamental modes of the "snake instability": Possibility of observation in the gaseous Bose-Einstein Condensate | |
| dc.type | text |