3 papers
cond-mat.str-el2017
Nonequilibrium Steady-State Transport in Quantum Impurity Models: a Thermofield and Quantum Quench Approach using Matrix Product States
Frauke Schwarz, Ireneusz Weymann, Jan von Delft +1
The numerical renormalization group (NRG) is tailored to describe interacting impurity models in equilibrium, but faces limitations for steady-state nonequilibrium, arising, e.g.,…
cond-mat.str-el2017
Nonequilibrium Kondo effect in a magnetic field: Auxiliary master equation approach
Delia M. Fugger, Antonius Dorda, Frauke Schwarz +2
We study the single-impurity Anderson model out of equilibrium under the influence of a bias voltage and a magnetic field . We investigate the interplay between the shift ($…
cond-mat.str-el2016
Open Wilson chains for quantum impurity models: Keeping track of all bath modes
Benedikt Bruognolo, Nils-Oliver Linden, Frauke Schwarz +6
When constructing a Wilson chain to represent a quantum impurity model, the effects of truncated bath modes are neglected. We show that their influence can be kept track of systema…