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- W2380651846 abstract "In this work we study the stability of vortices in attractive Bose-Einstein condensates by solving numerically the Gross-Pitaevskii equation. Initially we reproduce some results from the literature, in which vortices in two-dimensional attractive Bose-Einstein condensates with homogeneous interatomic potential are studied. The stability of these systems is determined by solving numerically the Bogoliubov-de Gennes equations and by studying the time evolution of these vortices. We demonstrate that these vortices are stable, up to a certain critical number of atoms, just for the value of vorticity S = 1. After, we propose a model in which the interatomic potential is spatially modulated. In this case, it is possible to verify that vortices with values of vorticity, at least, S = 6 are stable. Finally, we study the stability of vortices in three-dimensional attractive condensates, again with a homogeneous interatomic potential. As in the two-dimensional case, we show that vortices in these systems are stable to values of vorticity S = 1. The next step in this work is study the stability of vortices in three-dimensional condensates with spatially modulated interatomic potential." @default.
- W2380651846 created "2016-06-24" @default.
- W2380651846 creator A5051949684 @default.
- W2380651846 date "2017-06-20" @default.
- W2380651846 modified "2023-09-24" @default.
- W2380651846 title "Estabilidade de vórtices em condensados de Bose-Einstein" @default.
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- W2380651846 doi "https://doi.org/10.11606/d.43.2016.tde-12052016-171955" @default.
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