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

Yuki Kawaguchi·Hiroki Saito·Masahito Ueda
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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 $^{87}$Rb condensate by changing the number of atoms or the trap frequency.

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Yuki Kawaguchi, Hiroki Saito, Masahito Ueda. 2006-11-06. Spontaneous Circulation in Ground-State Spinor Dipolar Bose-Einstein Condensates. https://doi.org/10.1103/physrevlett.97.130404

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