The renormalization group plays an essential role in many areas of physics, both
conceptually and as a practical tool to determine the long-distance low-energy properties of …

For decades, frustrated quantum magnets have been a seed for scientific progress and
innovation in condensed matter. As much as the numerical tools for low-dimensional …

Numerous correlated electron systems exhibit a strongly scale-dependent behavior. Upon
lowering the energy scale, collective phenomena, bound states, and new effective degrees …

We identify the precise hallmarks of the local magnetic moment formation and its Kondo
screening in the frequency structure of the generalized charge susceptibility. The sharpness …

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

Finite-temperature transport properties of one-dimensional systems can be studied using the
time dependent density matrix renormalization group via the introduction of auxiliary …

We directly calculate spectral functions in the O (N) model at finite temperature within the
framework of the functional renormalization group. Special emphasis is put on a fully …

We employ the functional renormalization group approach formulated on the Schwinger-
Keldysh contour to calculate real-time correlation functions in scalar field theories. We …

We introduce a real time version of the functional renormalization group, which allows us to
study correlation effects on nonequilibrium transport through quantum dots. Our method is …

We investigate several fundamental characteristics of the multiloop functional
renormalization group (mfRG) flow by hands of its application to a prototypical many …