Abstract
We introduce a two-dimensional discrete nonlinear SchrÃdinger (DNLS) equation with self-attractive cubic nonlinearity in a rotating reference frame. The model applies to a Bose-Einstein condensate stirred by a rotating strong optical lattice, or light propagation in a twisted bundle of nonlinear fibers. Two types of localized states are constructed: off-axis fundamental solitons (FSs), placed at distance R from the rotation pivot, and on-axis (R=0) vortex solitons (VSs), with vorticities S=1 and 2. At a fixed value of rotation frequency Î
Original language | English |
---|---|
Article number | 046608 |
Journal | Physical Review E - Statistical, Nonlinear, and Soft Matter Physics |
Volume | 76 |
Issue number | 4 |
DOIs | |
State | Published - 23 Oct 2007 |