Spontaneous spin textures in dipolar spinor condensates: A Dirac string gas approach

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Abstract

We study the spontaneous spin textures induced by magnetic dipole-dipole interaction in ferromagnetic spinor condensates under various trap geometries. At the mean-field level, we show the system is dual to a Dirac string gas with a negative string tension in which the ground state spin texture can be easily determined. We find that three-dimensional condensates prefer a meronlike vortex texture, quasi-one-dimensional condensates prefer the axially polarized flare texture, while condensates in quasi-two-dimensions exhibit either a meron texture or an in-plane polarized texture.

Original languageEnglish (US)
Article number053605
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume91
Issue number5
DOIs
StatePublished - May 6 2015
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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