Year: 2008
Type: article
Abstract: We predict solitary vortices in quasiplanar condensates of dipolar atoms, polarized parallel to the confinement direction, with the effective sign of the dipole-dipole interaction inverted by means of a rapidly rotating field. Energy minima corresponding to vortex solitons with topological charges $\ensuremath{\ell}=1$ and 2 are predicted for moderately strong dipole-dipole interaction, using an axisymmetric Gaussian Ansatz. The stability of the solitons with $\ensuremath{\ell}=1$ is confirmed by full three-dimensional simulations, whereas their counterparts with $\ensuremath{\ell}=2$ are found to be unstable against splitting into a set of four fragments (quadrupole).
Source: Physical Review A
Authors: I. Tikhonenkov, B. A. Malomed, A. Vardi
Institutions: Ben-Gurion University of the Negev, Tel Aviv University
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Funder: Israel Science Foundation
OpenAlex ID: W1996870543