Creation and dynamics of two-dimensional skyrmions in antiferromagnetic spin-1 Bose-Einstein condensates
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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2014
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en
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Physical Review A, Volume 89, issue 3, pp. 1-7
Abstract
We numerically simulate the creation process of two-dimensional skyrmionic excitations in antiferromagnetic spin-1 Bose-Einstein condensates by solving the full three-dimensional dynamics of the system from the Gross-Pitaevskii equation. Our simulations reproduce quantitatively the experimental results of Choi et al. [Phys. Rev. Lett. 108, 035301 (2012)] without any fitting parameters. Furthermore, we examine the stability of the skyrmion by computing the temporal evolution of the condensate in a harmonic potential. The presence of both the quadratic Zeeman effect and dissipation in the simulations is vital for reproducing the experimentally observed decay time.Description
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Ollikainen, T, Ruokokoski, E & Mottonen, M 2014, 'Creation and dynamics of two-dimensional skyrmions in antiferromagnetic spin-1 Bose-Einstein condensates', Physical Review A, vol. 89, no. 3, 033629, pp. 1-7. https://doi.org/10.1103/PhysRevA.89.033629