117 citations · 352 across the 7 of their papers we have counts for
7 papers
Universal equilibrium scaling functions at short times after a quench
Markus Karl, Halil Cakir, Jad C. Halimeh +3
By analyzing spin-spin correlation functions at relatively short distances, we show that equilibrium near-critical properties can be extracted at short times after quenches into th…
Strongly anomalous non-thermal fixed point in a quenched two-dimensional Bose gas
Markus Karl, Thomas Gasenzer
Universal scaling behavior in the relaxation dynamics of an isolated two-dimensional Bose gas is studied by means of semi-classical stochastic simulations of the Gross-Pitaevskii m…
Observation of scaling in the dynamics of a strongly quenched quantum gas
Eike Nicklas, Markus Karl, Moritz Höfer +6
We report on the experimental observation of scaling in the time evolution following a sudden quench into the vicinity of a quantum critical point. The experimental system, a two-c…
Non-Thermal Fixed Point in a Holographic Superfluid
Carlo Ewerz, Thomas Gasenzer, Markus Karl +1
We study the far-from-equilibrium dynamics of a (2+1)-dimensional superfluid at finite temperature and chemical potential using its holographic description in terms of a gravitatio…
Universal scaling at non-thermal fixed points of a two-component Bose gas
Markus Karl, Boris Nowak, Thomas Gasenzer
Quasi-stationary far-from-equilibrium critical states of a two-component Bose gas are studied in two spatial dimensions. After the system has undergone an initial dynamical instabi…
Non-thermal fixed points: universality, topology, & turbulence in Bose gases
Boris Nowak, Sebastian Erne, Markus Karl +3
In these notes we discuss recent developments in the field of non-equilibrium quantum dynamics. Specifically, we consider nearly coherent Bose gases brought far out of equilibrium…
Tuning universality far from equilibrium
Markus Karl, Boris Nowak, Thomas Gasenzer
Possible universal dynamics of a many-body system far from thermal equilibrium are explored. A focus is set on meta-stable non-thermal states exhibiting critical properties such as…