Three-dimensional skyrmions in spin-2 Bose–Einstein condensates
Tiurev, K., Ollikainen, T., Kuopanportti, P., Nakahara, M., Hall, D. S., & Möttönen, M. (2018). Three-dimensional skyrmions in spin-2 Bose–Einstein condensates. New Journal of Physics, 20(May), Article 055011. https://doi.org/10.1088/1367-2630/aac2a8
Julkaistu sarjassa
New Journal of PhysicsTekijät
Päivämäärä
2018Tekijänoikeudet
© 2018 The Authors. Published by IOP Publishing Ltd on behalf of Deutsche Physikalische Gesellschaft
We introduce topologically stable three-dimensional skyrmions in the cyclic and biaxial nematic
phases of a spin-2 Bose–Einstein condensate. These skyrmions exhibit exceptionally high mapping
degrees resulting from the versatile symmetries of the corresponding order parameters. We show how
these structures can be created in existing experimental setups and study their temporal evolution and
lifetime by numerically solving the three-dimensional Gross–Pitaevskii equations for realistic
parameter values. Although the biaxial nematic and cyclic phases are observed to be unstable against
transition towards the ferromagnetic phase, their lifetimes are long enough for the skyrmions to be
imprinted and detected experimentally.
Julkaisija
IOP Publishing; Deutsche Physikalische GesellschaftISSN Hae Julkaisufoorumista
1367-2630Julkaisu tutkimustietojärjestelmässä
https://converis.jyu.fi/converis/portal/detail/Publication/28110376
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