Multiple dark-bright solitons in atomic Bose-Einstein condensates
Abstract
We present experimental results and a systematic theoretical analysis of dark-br ight soliton interactions and multiple-dark-bright soliton complexes in atomic t wo-component Bose-Einstein condensates. We study analytically the interactions b etween two-dark-bright solitons in a homogeneous condensate and, then, extend ou r considerations to the presence of the trap. An effective equation of motion is derived for the dark-bright soliton center and the existence and stability of stationary two-dark-bright soliton states is illustrated (with the bright components being either in- or out-of-phase). The equation of motion provides the characteristic oscillation frequencies of the solitons, in good agreement with the eigenfrequencies of the anomalous modes of the system.
Cite
@article{arxiv.1104.4359,
title = {Multiple dark-bright solitons in atomic Bose-Einstein condensates},
author = {D. Yan and J. J. Chang and C. Hamner and P. G. Kevrekidis and P. Engels and V. Achilleos and D. J. Frantzeskakis and R. Carretero-Gonzalez and P. Schmelcher},
journal= {arXiv preprint arXiv:1104.4359},
year = {2012}
}
Comments
10 pages, 6 figures