324 citations · 438 across the 4 of their papers we have counts for
4 papers
One-dimensional phase transitions in a two-dimensional optical lattice
Magnus Rehn, Sara Bergkvist, Anders Rosengren +4
A phase transition for bosonic atoms in a two-dimensional anisotropic optical lattice is considered. If the tunnelling rates in two directions are different, the system can undergo…
Transition from a two-dimensional superfluid to a one-dimensional Mott insulator
Sara Bergkvist, Robert Saers, Emil Lundh +3
A two-dimensional system of atoms in an anisotropic optical lattice is studied theoretically. If the system is finite in one direction, it is shown to exhibit a transition between…
Unstable regimes for a Bose-Einstein condensate in an optical lattice
L. De Sarlo, L. Fallani, J. E. Lye +4
We report on the experimental characterization of energetic and dynamical instability, two mechanisms responsible for the breakdown of Bloch waves in a Bose-Einstein condensate int…
Observation of dynamical instability for a Bose-Einstein condensate in a moving 1D optical lattice
L. Fallani, L. De Sarlo, J. E. Lye +4
We have experimentally studied the unstable dynamics of a harmonically trapped Bose-Einstein condensate loaded into a 1D moving optical lattice. The lifetime of the condensate in s…