Three-dimensional skyrmions in spin-2 Bose-Einstein condensates

Konstantin Tiurev, Tuomas Ollikainen, Pekko Kuopanportti, Mikio Nakahara, David S. Hall, Mikko Möttönen

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6 Citations (Scopus)
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Abstract

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 skyrmions are eventually destroyed due to the instability of the underlying magnetic phase, their lifetimes are found to be long enough for experimental detection.
Original languageEnglish
Article number055011
Pages (from-to)1-8
JournalNew Journal of Physics
Volume20
Issue number5
DOIs
Publication statusPublished - 2018
MoE publication typeA1 Journal article-refereed

Keywords

  • Bose-Einstein condensation
  • skyrmion
  • spinor condensate

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  • Projects

    QUESS - Quantum Environment Engineering for Steered Systems

    Möttönen, M., Partanen, M., Silveri, M., Ikonen, J., Oinonen, N., Tiurev, K., Girard, J., Mäkinen, A., Tuorila, J., Keränen, A., Gunyhó, A., Zhang, J., Kohvakka, K., Lebedeff, S. & Ma, J.

    23/12/201628/02/2022

    Project: EU: ERC grants

    Equipment

    Science-IT

    Mikko Hakala (Manager)

    School of Science

    Facility/equipment: Facility

  • Cite this

    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(5), 1-8. [055011]. https://doi.org/10.1088/1367-2630/aac2a8