Frank Lechermann

I. Institut für Theoretische Physik
Universität Hamburg
Jungiusstrasse 9
20355 Hamburg
Tel. : +49-40-42838-7943
Fax.: +49-40-42838-6798
firstname.lastname @ physnet.uni-hamburg.de
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RESEARCH

I am generally aiming at reaching a deeper understanding of real condensed matter systems from a microscopic point of view. In this regard, my main concern is the electronic structure. As the latter shows in the most interesting cases a complex many-particle character, combining realistic band-structure methods with approaches from many-body theory is one major goal of my research.

Some general topics/frameworks are:
  • Density Functional Theory (DFT) in various flavors
  • Dynamical Mean-Field Theory (DMFT) and its combination with DFT
  • Basis Sets for the correlated electronic structure problem (Wannier functions, etc.)
  • Slave-Boson Theory
  • Cluster Expansion Technique and Cluster Variation Method