Mobile vector soliton in a spin-orbit coupled spin-$1$ condensate
Abstract
We study the formation of bound states and three-component bright vector solitons in a quasi-one-dimensional spin-orbit-coupled hyperfine spin Bose-Einstein condensate using numerical solution and variational approximation of a mean-field model. In the antiferromagnetic domain, the solutions are time-reversal symmetric, and the component densities have multi-peak structure. In the ferromagnetic domain, the solutions violate time-reversal symmetry, and the component densities have single-peak structure. The dynamics of the system is not Galelian invariant. From an analysis of Galelian invariance, we establish that the single-peak ferromagnetic vector solitons are true solitons and can move maintaining constant component densities, whereas the antiferromagnetic solitons cannot move with constant component densities.
Cite
@article{arxiv.1505.06193,
title = {Mobile vector soliton in a spin-orbit coupled spin-$1$ condensate},
author = {Sandeep Gautam and S. K. Adhikari},
journal= {arXiv preprint arXiv:1505.06193},
year = {2015}
}