Lovegrove, Justin and Borgh, Magnus O. and Ruostekoski, Janne (2014) Energetic stability of coreless vortices in Spin-1 Bose-Einstein condensates with conserved magnetization. Physical review letters, 112 (7). ISSN 1079-7114
Full text not available from this repository.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.