Novel vortex structures in dipolar condensates

TL;DR

This paper explores unique vortex structures in rotating dipolar condensates, revealing how anisotropic dipolar interactions lead to novel vortex shapes and lattice symmetries, differing from traditional condensate behaviors.

Contribution

It introduces the first detailed analysis of vortex structures influenced by long-range dipolar interactions in rotating condensates, highlighting new vortex geometries and lattice configurations.

Findings

Vortices can have crater-like structures when dipoles are aligned along the rotation axis.

Vortex cores become elliptical when dipoles are polarized orthogonally.

Vortex lattices lose hexagonal symmetry due to dipolar interactions.

Abstract

We investigate the properties of single vortices and of vortex lattice in a rotating dipolar condensate. We show that vortices in this system possess many novel features induced by the long-range anisotropic dipolar interaction between particles. For example, when the dipoles are polarized along the rotation axis, vortices may display a crater-like structure; when dipoles are polarized orthogonal to the rotation axis, vortex cores takes an elliptical shape and the vortex lattice no longer possesses hexagonal symmetry.