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arXiv · 0704.0122

Spinor dipolar Bose-Einstein condensates; Classical spin approach

M. Takahashi·Sankalpa Ghosh·T. Mizushima·K. Machida
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Abstract

Magnetic dipole-dipole interaction dominated Bose-Einstein condensates are discussed under spinful situations. We treat the spin degrees of freedom as a classical spin vector, approaching from large spin limit to obtain an effective minimal Hamiltonian; a version extended from a non-linear sigma model. By solving the Gross-Pitaevskii equation we find several novel spin textures where the mass density and spin density are strongly coupled, depending upon trap geometries due to the long-range and anisotropic natures of the dipole-dipole interaction.

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M. Takahashi, Sankalpa Ghosh, T. Mizushima, K. Machida. 2007-04-04. Spinor dipolar Bose-Einstein condensates; Classical spin approach. https://doi.org/10.1103/physrevlett.98.260403

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