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cond-mat.other2007
Nonlinear behavior of bosons in anisotropic optical lattices
A. Cetoli, E. Lundh
We investigate the behavior of an array of Bose-Einstein condensate tubes described by means of a Bose-Hubbard Hamiltonian. Using an anisotropic non-polynomial Schrodinger equation…
cond-mat.other2007
Long term dynamics of the splitting of a doubly quantized vortex in a two-dimensional condensate
Halvor M. Nilsen, Emil Lundh
We study the nonlinear dynamics of the splitting of a doubly quantized vortex in a trapped condensate. The dynamics is studied in detail by solving the Gross-Pitaevskii equation. T…
cond-mat.other2004
Period-doubled breathing in trapped Bose-Einstein condensates
Emil Lundh
The response of a trapped Bose-Einstein condensed gas to a periodic driving force is studied theoretically in the framework of the nonlinear Gross-Pitaevskii equation. The monopole…