Functional Renormalization Group
for Correlated Fermion Systems
Research Unit of the
German Research Foundation
In recent years, the functional renormalization group has led to significant progress in the understanding of correlated fermion systems. In this group project we apply and extend the method to situations of the highest physical interest, namely the broken-symmetry phases of models of high-temperature superconductors, quantum dots and quantum wires, nonequilibrium phenomena in Kondo and Anderson models, quantum phase transitions in metallic systems, and ultracold atom gases.
By joining efforts and combining our expertise and experience we will work to establish the method firmly as a means for doing accurate calculations, to gain a good understanding of the infrared behaviour in these situations, and, in certain cases, to compare to experiments. Moreover, the cooperation within the research group will also further the understanding of the properties of the renormalization group itself.