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arXiv · 1505.06193

Mobile vector soliton in a spin-orbit coupled spin-$1$ condensate

Sandeep Gautam·S. K. Adhikari
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Abstract

We study the formation of bound states and three-component bright vector solitons in a quasi-one-dimensional spin-orbit-coupled hyperfine spin $f=1$ 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.

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Sandeep Gautam, S. K. Adhikari. 2015-05-22. Mobile vector soliton in a spin-orbit coupled spin-$1$ condensate. https://doi.org/10.1088/1612-2011%2F12%2F4%2F045501

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