2014/10/20 by S. K. Adhikari
Physics and Astronomy · #cond-mat.quant-gas
paper · pdf · doi:10.1103/physreva.90.055601
published as Phys. Rev. A 90 (2014) 055601 · arXiv admin note: text overlap with arXiv:1404.1946
arxiv created 2014/10/20 · arxiv updated 2015/06/23
We demonstrate stable, robust, bright dipolar Bose-Einstein condensate (BEC) solitons, moving in a direction perpendicular to the polarization direction, formed due to dipolar interaction for repulsive contact interaction. At medium velocity the head on collision of two such solitons is found to be quasi elastic with practically no deformation. Upon small perturbation the solitons are found to exhibit sustained breathing oscillation. The findings are illustrated by numerical simulation using the 3D mean-field Gross-Pitaevskii equation and a reduced 2D model in three and two spatial dimensions employing realistic interaction parameters for a dipolar 164Dy BEC.