Ultrafast dynamics of strongly correlated fermions—nonequilibrium Green functions and selfenergy approximations
This article presents an overview on recent progress in the theory of nonequilibrium Green
functions (NEGF). We discuss applications of NEGF simulations to describe the femtosecond …
functions (NEGF). We discuss applications of NEGF simulations to describe the femtosecond …
Solvable hydrodynamics of quantum integrable systems
The conventional theory of hydrodynamics describes the evolution in time of chaotic many-
particle systems from local to global equilibrium. In a quantum integrable system, local …
particle systems from local to global equilibrium. In a quantum integrable system, local …
Expansion dynamics of interacting bosons in homogeneous lattices in one and two dimensions
We experimentally and numerically investigate the expansion of initially localized ultracold
bosons in homogeneous one-and two-dimensional optical lattices. We find that both …
bosons in homogeneous one-and two-dimensional optical lattices. We find that both …
Local shear transformations in deformed and quiescent hard-sphere colloidal glasses
We perform a series of deformation experiments on a monodisperse, hard-sphere colloidal
glass while simultaneously following the three-dimensional trajectories of roughly 50 000 …
glass while simultaneously following the three-dimensional trajectories of roughly 50 000 …
Nonequilibrium dynamics in the one-dimensional Fermi-Hubbard model: Comparison of the nonequilibrium Green-functions approach and the density matrix …
The nonequilibrium dynamics of strongly-correlated fermions in lattice systems have
attracted considerable interest in the condensed matter and ultracold atomic-gas …
attracted considerable interest in the condensed matter and ultracold atomic-gas …
Entanglement spreading after a geometric quench in quantum spin chains
We investigate the entanglement spreading in the anisotropic spin-1/2 Heisenberg (XXZ)
chain after a geometric quench. This corresponds to a sudden change of the geometry of the …
chain after a geometric quench. This corresponds to a sudden change of the geometry of the …
Dynamics of strongly correlated fermions: Ab initio results for two and three dimensions
Quantum transport of strongly correlated fermions is of central interest in condensed matter
physics. While the stationary expansion dynamics have recently been measured with cold …
physics. While the stationary expansion dynamics have recently been measured with cold …
Emergent eigenstate solution to quantum dynamics far from equilibrium
The quantum dynamics of interacting many-body systems has become a unique venue for
the realization of novel states of matter. Here, we unveil a new class of nonequilibrium states …
the realization of novel states of matter. Here, we unveil a new class of nonequilibrium states …
Sudden expansion of Mott insulators in one dimension
We investigate the expansion of bosons and fermions in a homogeneous lattice after a
sudden removal of the trap** potential using exact numerical methods. As a main result …
sudden removal of the trap** potential using exact numerical methods. As a main result …
Expansion of one-dimensional lattice hard-core bosons at finite temperature
We develop an exact approach to study the quench dynamics of hard-core bosons initially in
thermal equilibrium in one-dimensional lattices. This approach is used to study the sudden …
thermal equilibrium in one-dimensional lattices. This approach is used to study the sudden …