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Vortex solutions in atomic Bose-Einstein condensates via the Adomian Decomposition Method

We study the dynamics of vortices with arbitrary topological charges in weakly interacting Bose-Einstein condensates using the Adomian Decomposition Method to solve the nonlinear Gross-Pitaevskii equation in polar coordinates. The solutions of the vortex equation are expressed in the form of infinite power series. The power series representations are compared with the exact numerical solutions of the Gross-Pitaevskii equation for the uniform and the harmonic potential, respectively. We find that there is a good agreement between the analytical and the numerical results.

preprint2020arXivOpen access
Tiberiu HarkoMan Kwong MakChun Sing Leung
math.CAcond-mat.quant-gas
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Tiberiu HarkoMan Kwong MakChun Sing Leung

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