Breaking of Chiral Symmetry and Spontaneous Rotation in a Spinor Bose-Einstein Condensate

TL;DR

This paper demonstrates that a spin-1 Bose-Einstein condensate with ferromagnetic interactions can spontaneously develop a topological spin texture involving vortices with opposite circulations, driven by the interplay of interactions and spin conservation.

Contribution

It reveals a novel spontaneous symmetry breaking phenomenon leading to topological spin textures in spinor Bose-Einstein condensates.

Findings

Spontaneous formation of topological spin textures in spinor BECs.

Opposite circulations of vortices in different magnetic sublevels.

Origin of phenomena linked to ferromagnetic interactions and spin conservation.

Abstract

We show that a spin-1 Bose-Einstein condensate with ferromagnetic interactions spontaneously generates a topological spin texture, in which the m = \pm 1 components of the magnetic sublevels form vortices with opposite circulations. This phenomenon originates from an interplay between ferromagnetic interactions and spin conservation.