Computational quantum many-body theory
We develop numerical methods for studying quantum many-body problems and apply them to investigate various systems, such as
strongly correlated electrons;
mesoscopic and nanoscale quantum devices; and
ultracold atoms in optical lattices.
We focus on two families of quantum many-body methods, namely
tensor network methods, including numerical renormalization group (NRG), density matrix renormalization group (DMRG), and projected entangled pair states (PEPS); and
dynamical mean-field theory (DMFT) and its nonlocal extensions.