Three-dimensional splitting dynamics of giant vortices in Bose-Einstein condensates

Jukka Räbinä, Pekko Kuopanportti, Markus I. Kivioja, Mikko Möttönen, Tuomo Rossi

Tutkimustuotos: LehtiartikkeliArticleScientificvertaisarvioitu

4 Sitaatiot (Scopus)
101 Lataukset (Pure)

Abstrakti

We study the splitting dynamics of giant vortices in dilute Bose-Einstein condensates by numerically integrating the three-dimensional Gross-Pitaevskii equation in time. By taking advantage of tetrahedral tiling in the spatial discretization, we decrease the error and increase the reliability of the numerical method. An extensive survey of vortex splitting patterns is presented for different aspect ratios of the harmonic trapping potential. The discrete rotational symmetries of the splitting patterns that emerge in the time evolution are in good agreement with predictions obtained by solving the prevailing dynamical instabilities from the Bogoliubov equations. Furthermore, we observe intertwining of the split vortices in prolate condensates and a split-and-revival phenomenon in a spherical condensate.

AlkuperäiskieliEnglanti
Artikkeli023624
Sivut1-7
JulkaisuPhysical Review A
Vuosikerta98
Numero2
DOI - pysyväislinkit
TilaJulkaistu - 22 elokuuta 2018
OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

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