44 citations · 104 across the 9 of their papers we have counts for
10 papers
What does "instant thermalization" in large- SYK models mean?
Alexander Osterkorn, Jan C. Louw
Motivated by the Planckian thermalization rate observed in the two-body interacting SYK model, we study thermalization in the -body case. Previous studies of such sy…
Optical signatures of dynamical excitonic condensates
Alexander Osterkorn, Yuta Murakami, Tatsuya Kaneko +3
We theoretically study dynamical excitonic condensates occurring in bilayers with an imposed chemical potential difference and in photodoped semiconductors. We show that optical sp…
Quench dynamics in higher-dimensional Holstein models: Insights from Truncated Wigner Approaches
Eva Paprotzki, Alexander Osterkorn, Vibhu Mishra +1
Charge-density wave phases in quantum materials stem from the complex interplay of electronic and lattice degrees of freedom. Nowadays, various time-resolved spectroscopy technique…
Lifshitz transition in the phase diagram of two-leg - ladder systems at low filling
Steffen Bollmann, Alexander Osterkorn, Elio J. König +1
We use a combination of numerical matrix product states (MPS) and analytical approaches to investigate the phase diagram of the two-leg - ladder in the region of low to inter…
In-Gap Band Formation in a Periodically Driven Charge Density Wave Insulator
Alexander Osterkorn, Constantin Meyer, Salvatore R. Manmana
Periodically driven quantum many-body systems host unconventional behavior not realized at equilibrium. Here we investigate such a setup for strongly interacting spinless fermions…
Photoinduced prethermal order parameter dynamics in the two-dimensional large- Hubbard-Heisenberg model
Alexander Osterkorn, Stefan Kehrein
We study the microscopic dynamics of competing ordered phases in a two-dimensional correlated electron model, which is driven with a pulsed electric field of finite duration. In or…
Direct Access to Auger recombination in Graphene
Marius Keunecke, David Schmitt, Marcel Reutzel +15
Auger scattering channels are of fundamental importance to describe and understand the non-equilibrium charge carrier dynamics in graphene. While impact excitation increases the nu…
Electromagnetic dressing of the electron energy spectrum of Au(111) at high momenta
Marius Keunecke, Marcel Reutzel, David Schmitt +10
Light-engineering of quantum materials via electromagnetic dressing is considered an on-demand approach for tailoring electronic band dispersions and even inducing topological phas…
Systematic large flavor fTWA approach to interaction quenches in the Hubbard model
Alexander Osterkorn, Stefan Kehrein
We study the nonequilibrium dynamics after an interaction quench in the two-dimensional Hubbard model using the recently introduced fermionic truncated Wigner approximation (fTWA).…
Detecting superconductivity out-of-equilibrium
Sebastian Paeckel, Benedikt Fauseweh, Alexander Osterkorn +3
Recent pump-probe experiments on underdoped cuprates and similar systems suggest the existence of a transient superconducting state above . This poses the question ho…