134 citations · 822 across the 14 of their papers we have counts for
3 papers · 1 filter
System size scaling of topological defect creation in a second-order dynamical quantum phase transition
Michael Uhlmann, Ralf Schützhold, Uwe R. Fischer
We investigate the system size scaling of the net defect number created by a rapid quench in a second-order quantum phase transition from an O(N) symmetric state to a phase of brok…
O(N) symmetry-breaking quantum quench: Topological defects versus quasiparticles
Michael Uhlmann, Ralf Schützhold, Uwe R. Fischer
We present an analytical derivation of the winding number counting topological defects created by an O(N) symmetry-breaking quantum quench in N spatial dimensions. Our approach is…
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…