In the early 1970s, Wilson developed the concept of a fully nonperturbative renormalization
group transformation. When applied to the Kondo problem, this numerical renormalization …

We review recent progress in the theoretical description of correlation and quantum
fluctuation phenomena in charge transport through single molecules, quantum dots and …

Molecular junctions, where single molecules are bound to metal or semiconductor
electrodes, represent a unique architecture to investigate molecules in a distinct …

We show how spectral functions for quantum impurity models can be calculated very
accurately using a complete set of discarded numerical renormalization group eigenstates …

We generalize the recently developed diagrammatic Monte Carlo techniques for quantum
impurity models from an imaginary time to a Keldysh formalism suitable for real-time and …

Multilayer multiconfiguration time-dependent Hartree (ML-MCTDH) theory is a rigorous and
powerful method to simulate quantum dynamics in complex many-body systems. This …

We present a technique for the calculation of dynamical correlation functions of quantum
impurity systems in equilibrium with Wilson's numerical renormalization group. Our …

We have developed a numerical approach to compute real-time path integral expressions
for quantum transport problems out of equilibrium. The scheme is based on a deterministic …

One of the main open problems in the field of transport in strongly interacting nanostructures
is the understanding of currents beyond the linear response regime. In this work, we …

We propose a numerical renormalization group (NRG) approach to steady-state currents
through nanodevices. A discretization of the scattering-states continuum ensures the correct …