Ferrofluidity in a two-component dipolar Bose-Einstein condensate.
It is shown that the interface in a two-component Bose-Einstein condensate (BEC) with a dipole-dipole interaction spontaneously develops patterns similar to those formed in a ferrofluid. Hexagonal, labyrinthine, solitonlike structures, and hysteretic behavior are numerically demonstrated. Superflow is found to circulate around the hexagonal pattern at rest, offering evidence of supersolidity. The system sustains persistent current with a vortex line pinned by the hexagonal pattern. These phenomena may be realized using a 52Cr BEC.
Saito
Hiroki
H
Department of Applied Physics and Chemistry, University of Electro-Communications, Tokyo 182-8585, Japan.
Kawaguchi
Yuki
Y
Ueda
Masahito
M