title: Breaking of chiral symmetry and spontaneous rotation in a spinor Bose-Einstein condensate.
abstract: We show that a spin-1 Bose-Einstein condensate with ferromagnetic interactions spontaneously generates a topological spin texture, in which the m = +/- 1 components of the magnetic sublevels form vortices with opposite circulations. This phenomenon originates from an interplay between ferromagnetic interactions and spin conservation.
authors.affiliation: Department of Physics, Tokyo Institute of Technology, Tokyo 152-8551, Japan.
authors.forename: Hiroki
authors.initials: H
authors.lastname: Saito
authors.forename: Yuki
authors.initials: Y
authors.lastname: Kawaguchi
authors.forename: Masahito
authors.initials: M
authors.lastname: Ueda