52 citations · 236 across the 13 of their papers we have counts for
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Dynamical instability, Chaos, and Bloch oscillations of Bose-Einstein condensates in tilted optical lattices
Andrey R. Kolovsky
We study the Bloch dynamics of a Bose-Einstein condensate of cold atoms by using the formalism of the discrete nonlinear Schroedinger equation. Depending on the static force magnit…
Emergence of superfluid transport in a dynamical system of ultracold atoms
Joachim Brand, Andrey R. Kolovsky
The dynamics of a Bose-Einstein condensate is studied theoretically in a combined periodic plus harmonic external potential. Different dynamical regimes of stable and unstable coll…
Bloch oscillations of cold atoms in optical lattices
Andrey R. Kolovsky, Hans Jürgen Korsch
This work is devoted to Bloch oscillations (BO) of cold neutral atoms in optical lattices. After a general introduction to the phenomenon of BO and its realization in optical latti…
Quantum Chaos in the Bose-Hubbard model
Andrey R. Kolovsky, Andreas Buchleitner
We present a numerical study of the spectral properties of the 1D Bose-Hubbard model. Unlike the 1D Hubbard model for fermions, this system is found to be non-integrable, and exhib…