134 citations · 822 across the 14 of their papers we have counts for
3 papers · 1 filter
Vortex quantum creation and winding number scaling in a quenched spinor Bose gas
Michael Uhlmann, Ralf Schützhold, Uwe R. Fischer
Motivated by a recent experiment, we study non-equilibrium quantum phenomena taking place in the quench of a spinor Bose-Einstein condensate through the zero-temperature phase tran…
Sweeping from the superfluid to Mott phase in the Bose-Hubbard model
Ralf Schützhold, Michael Uhlmann, Yan Xu +1
We study the sweep through the quantum phase transition from the superfluid to the Mott state for the Bose-Hubbard model with a time-dependent tunneling rate . In the experim…
Signatures of Planck-scale interactions in the cosmic microwave background?
Friedemann Queisser, Michael Uhlmann, Ralf Schützhold
Based on a rather general low-energy effective action (interacting quantum fields in classical curved space-times), we calculate potential signatures of new physics (such as quantu…