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Vortex nucleation in Bose-Einstein condensates in time-dependent traps
Emil Lundh, J. -P. Martikainen, Kalle-Antti Suominen
Vortex nucleation in a Bose-Einstein condensate subject to a stirring potential is studied numerically using the zero-temperature, two-dimensional Gross-Pitaevskii equation. It is…
Rapid Adiabatic Passage from an Atomic to a Molecular Condensate
Matt Mackie, Andrew Carmichael, Marijan Kostrun +5
We examine collective magnetoassociation of a Bose-Einstein condensate (BEC), focusing on rapid adiabatic passage from atoms to molecules induced by a sweep of the magnetic field a…
Role of Molecular Dissociation in Feshbach-Interacting 85Rb Condensates
Matt Mackie, Kalle-Antti Suominen, Juha Javanainen
Recent Feshbach-resonance experiments with 85Rb Bose-Einstein condensates have led to a host of unexplained results: dramatic losses of condensate atoms for an across-resonance swe…
Coreless vortex ground state of the rotating spinor condensate
J. -P. Martikainen, A. Collin, K. -A. Suominen
We study the ground state of the rotating spinor condensate and show that for slow rotation the ground state of the ferromagnetic spinor condensate is a coreless vortex. While core…
Mean-Field Theory of Feshbach-Resonant Interactions in 85Rb Condensates
Matt Mackie, Kalle-Antti Suominen, Juha Javanainen
Recent Feshbach-resonance experiments with 85Rb Bose-Einstein condensates have led to a host of unexplained results: dramatic losses of condensate atoms for an across-resonance swe…
Optical shielding of cold collisions in blue-detuned near-resonant optical lattices
J. Piilo, K. -A. Suominen
We report Monte Carlo wave function simulation results for two colliding atoms in a blue-detuned near-resonant optical lattice. Our results show that complete optical…