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Spontaneous Circulation in Ground-State Spinor Dipolar Bose-Einstein Condensates

Yuki Kawaguchi, Hiroki Saito, Masahito Ueda

cond-mat.otherarXiv:cond-mat/0606288

Abstract

We report on a study of the spin-1 ferromagnetic Bose-Einstein condensate with magnetic dipole-dipole interactions. By solving the non-local Gross-Pitaevskii equations for this system, we find three ground-state phases. Moreover, we show that a substantial orbital angular momentum accompanied by chiral symmetry breaking emerges spontaneously in a certain parameter regime. We predict that all these phases can be observed in the spin-1 87Rb condensate by changing the number of atoms or the trap frequency.

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