Final published version
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Energetic stability of coreless vortices in Spin-1 Bose-Einstein condensates with conserved magnetization
AU - Lovegrove, Justin
AU - Borgh, Magnus O.
AU - Ruostekoski, Janne
PY - 2014/2/19
Y1 - 2014/2/19
N2 - 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.
AB - 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.
KW - bose-einstein condensates
KW - spinor condensates
KW - topological defects
U2 - 10.1103/PhysRevLett.112.075301
DO - 10.1103/PhysRevLett.112.075301
M3 - Journal article
VL - 112
JO - Physical review letters
JF - Physical review letters
SN - 1079-7114
IS - 7
M1 - 075301
ER -