2004/06/26 by P. G. Kevrekidis, D. J. Frantzeskakis · 1 citation
Physics and Astronomy · #cond-mat.other
paper · pdf · doi:10.1142/s0217984904006809
published as Modern Physics Letters B 18, 173-202 (2004) · 28 pages, 9 figures, published
arxiv created 2004/06/26 · arxiv updated 2009/12/01
In this short topical review, we revisit a number of works on the pattern-forming dynamical instabilities of Bose-Einstein condensates in one- and two-dimensional settings. In particular, we illustrate the trapping conditions that allow the reduction of the three-dimensional, mean field description of the condensates (through the Gross-Pitaevskii equation) to such lower dimensional settings, as well as to lattice settings. We then go on to study the modulational instability in one dimension and the snaking/transverse instability in two dimensions as typical examples of long-wavelength perturbations that can destabilize the condensates and lead to the formation of patterns of coherent structures in them. Trains of solitons in one-dimension and vortex arrays in two-dimensions are prototypical examples of the resulting nonlinear waveforms, upon which we briefly touch at the end of this review.