Spontaneous magnetic ordering in a ferromagnetic spinor dipolar Bose-Einstein condensate
Spontaneous magnetic ordering in a ferromagnetic spinor dipolar Bose-Einstein condensate
We study the spin dynamics in a spin-1 ferromagnetic Bose-Einstein condensate with magnetic dipole-dipole interaction (MDDI) based on the Gross-Pitaevskii and Bogoliubov theories. We find that various magnetic structures such as checkerboards and stripes emerge in the course of the dynamics due to the combined effects of spin-exchange interaction, MDDI, …