Two-dimensional dipolar Bose-Einstein condensate bright and vortex solitons on one-dimensional optical lattice

TL;DR

This paper demonstrates the creation and stability of two-dimensional dipolar Bose-Einstein condensate bright and vortex solitons on a one-dimensional optical lattice, revealing their elastic collision properties and potential for stable arrays.

Contribution

It introduces a method to generate stable 2D dipolar BEC solitons on a 1D optical lattice, including vortex solitons, and explores their interactions and arrangements.

Findings

Stable 2D dipolar BEC bright solitons can be formed with weak optical lattices.

Vortex solitons are realizable in this setup.

Solitons exhibit elastic collision behavior.

Abstract

By solving the three-dimensional Gross-Pitaevskii equation we generate two-dimensional axially-symmetric and anisotropic dipolar Bose-Einstein condensate bright solitons, for repulsive atomic interaction, stabilized by only a weak one-dimensional optical lattice (OL) aligned along and perpendicular, respectively, to the dipole polarization direction. In the former case vortex solitons can also be created. We show that it is possible to make a stable array of small interacting axially-symmetric dipolar solitons put on alternate OL sites. Further, we demonstrate the elastic nature of the collision of two such solitons.