Drag-induced dynamical formation of dark solitons in Bose mixture on a ring

Stabilization of ring dark solitons in Bose-Einstein condensates

Wenlong Wang,1,* P. G. Kevrekidis,2,3,† R. Carretero-González,4,‡ D. J. Frantzeskakis,5 Tasso J. Kaper,6 and Manjun Ma7,§ 1Department of Physics, University of Massachusetts, Amherst, Massachusetts 01003, USA 2Department of Mathematics and Statistics, University of Massachusetts, Amherst, Massachusetts 01003-4515, USA 3Center for Nonlinear Studies and Theoretical Division, Los Alamos National L...

Dark-Bright Ring Solitons in Bose-Einstein Condensates

Ring dark solitons and vortex necklaces in Bose-Einstein condensates.

We introduce the concept of ring dark solitons in Bose-Einstein condensates. We show that relatively shallow rings are not subject to the snake instability, but a deeper ring splits into a robust ringlike cluster of vortex pairs, which performs oscillations in the radial and azimuthal directions, following the dynamics of the original ring soliton.

Dark Solitons in Bose-Einstein Condensates

A. Sanpera,1 G. V. Shlyapnikov,1,2,3 and M. Lewenstein1 1Institut für Theoretische Physik, Universität Hannover, 30167 Hannover, Germany 2FOM Institute for Atomic and Molecular Physics, Kruislaan 407, 1098 SJ Amsterdam, The Netherlands 3Russian Research Center Kurchatov Institute, Kurchatov Square, 123182 Moscow, Russia (Received 27 October 1999) Dark solitons in cigar-shaped Bose-Einstein cond...

Bright and gap solitons and vortex formation in a superfluid Bose-Fermi mixture

Starting from a Lagrangian density of a superfluid Bose-Fermi mixture we derive a coupled set of nonlinear Schrödinger equations for the system. In the absense of interspecies Bose-Fermi interaction the Bose component satisfies a standard Gross-Pitaevskii equation, whereas the Fermi component satisfies a Ginzburg-Landau-type equation suitable for the Fermi superfluid. To study dynamics we use t...