Nonequilibrium dynamical mean-field theory and its applications
The study of nonequilibrium phenomena in correlated lattice systems has developed into
one of the most active and exciting branches of condensed matter physics. This research …
one of the most active and exciting branches of condensed matter physics. This research …
Ultrafast optical spectroscopy of strongly correlated materials and high-temperature superconductors: a non-equilibrium approach
In the last two decades non-equilibrium spectroscopies have evolved from avant-garde
studies to crucial tools for expanding our understanding of the physics of strongly correlated …
studies to crucial tools for expanding our understanding of the physics of strongly correlated …
Driven-dissipative quantum mechanics on a lattice: Simulating a fermionic reservoir on a quantum computer
The driven-dissipative many-body problem remains one of the most challenging unsolved
problems in quantum mechanics. The advent of quantum computers may provide a unique …
problems in quantum mechanics. The advent of quantum computers may provide a unique …
Nonthermal antiferromagnetic order and nonequilibrium criticality in the Hubbard model
We study dynamical phase transitions from antiferromagnetic to paramagnetic states driven
by an interaction quench in the fermionic Hubbard model using the nonequilibrium …
by an interaction quench in the fermionic Hubbard model using the nonequilibrium …
Solving nonequilibrium dynamical mean-field theory using matrix product states
We solve nonequilibrium dynamical mean-field theory (DMFT) using matrix product states
(MPS). This allows us to treat much larger bath sizes and by that reach substantially longer …
(MPS). This allows us to treat much larger bath sizes and by that reach substantially longer …
Photoinduced states in a Mott insulator
We investigate the properties of the metallic state obtained by photodo** carriers into a
Mott insulator. In a strongly interacting system, these carriers have a long lifetime, so that …
Mott insulator. In a strongly interacting system, these carriers have a long lifetime, so that …
Electric-field-driven resistive switching in the dissipative Hubbard model
We study how strongly correlated electrons on a dissipative lattice evolve out of equilibrium
under a constant electric field, focusing on the extent of the linear regime and hysteretic …
under a constant electric field, focusing on the extent of the linear regime and hysteretic …
Linked cluster expansions for open quantum systems on a lattice
We propose a generalization of the linked-cluster expansions to study driven-dissipative
quantum lattice models, directly accessing the thermodynamic limit of the system. Our …
quantum lattice models, directly accessing the thermodynamic limit of the system. Our …
Impact of disorder and phonons on the Hubbard bands of Mott insulators in strong electric fields
We characterize the current-carrying nonequilibrium steady state (NESS) in a single-band
Hubbard model confronted with a static electric field in the presence of quenched disorder …
Hubbard model confronted with a static electric field in the presence of quenched disorder …
Ultra-fast photo-carrier relaxation in Mott insulators with short-range spin correlations
Ultra-fast spectroscopy can reveal the interplay of charges with low energy degrees of
freedom, which underlies the rich physics of correlated materials. As a potential glue for …
freedom, which underlies the rich physics of correlated materials. As a potential glue for …