Energetic Stability of Coreless Vortices in Spin-1 Bose-Einstein Condensates with Conserved Magnetization

Justin Lovegrove, Magnus O. Borgh, Janne Ruostekoski

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25 Citations (Scopus)

Abstract

We show that conservation of longitudinal magnetization in a spinor condensate provides a stabilizing mechanism for a coreless vortex phase-imprinted on a polar condensate. The stable vortex can form a composite topological defect with distinct small- and large-distance topology: the inner ferromagnetic coreless vortex continuously deforms toward an outer singular, singly quantized polar vortex. A similar mechanism can also stabilize a nonsingular nematic texture in the polar phase. A weak magnetization is shown to destabilize a coreless vortex in the ferromagnetic phase.
Original languageEnglish
Article number075301
JournalPhysical Review Letters
Volume112
Issue number7
DOIs
Publication statusPublished - 19 Feb 2014

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