347 citations · 2.7k across the 49 of their papers we have counts for
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An analytical study of resonant transport of Bose-Einstein condensates
K. Rapedius, D. Witthaut, H. J. Korsch
We study the stationary nonlinear Schrödinger equation, or Gross-Pitaevskii equation, for a one--dimensional finite square well potential. By neglecting the mean--field interaction…
Mean-field dynamics of a Bose-Einstein condensate in a time-dependent triple-well trap: Nonlinear eigenstates, Landau-Zener models and STIRAP
E. M. Graefe, H. J. Korsch, D. Witthaut
We investigate the dynamics of a Bose--Einstein condensate (BEC) in a triple-well trap in a three-level approximation. The inter-atomic interactions are taken into account in a mea…
Chaotic Quantum Decay in Driven Biased Optical Lattices
S. Mossmann, C. Schumann, H. J. Korsch
Quantum decay in an ac driven biased periodic potential modeling cold atoms in optical lattices is studied for a symmetry broken driving. For the case of fully chaotic classical dy…
The nonlinear Schroedinger equation for the delta-comb potential: quasi-classical chaos and bifurcations of periodic stationary solutions
D. Witthaut, K. Rapedius, H. J. Korsch
The nonlinear Schroedinger equation is studied for a periodic sequence of delta-potentials (a delta-comb) or narrow Gaussian potentials. For the delta-comb the time-independent non…