Materials with strong electronic correlations exhibit some of the most remarkable properties found in condensed matter systems, such as high temperature superconductivity or colossal magnetoresistance. Due to the advances in materials synthesis discoveries of materials displaying novel electronic properties are reported at a growing pace, the most recent example being Fe-based ``high temperature" superconductors. The theoretical understanding of the complex properties of these materials is however incomplete. Deriving the proper low-energy models is far from trivial and the numerical simulation of these models poses great challenges.
In order to make progress, approximate descriptions of fermionic lattice models must be considered. One such approximate description, which combines computational tools and analytical considerations, is dynamical mean field theory (DMFT). This method can be combined with electronic band structure calculations to allow ''realistic'' simulations of materials with strong electronic correlations. Since DMFT calculations involve the self-consistent solution of an impurity problem, the field benefits from the recent development of flexible and powerful impurity solvers. These new techniques enable the study of more complex models and, therefore, promise new insights into the mechanisms underlying the remarkable phenomena observed in transition metal and actinide compounds.
The purpose of this workshop is to bring together some of the leading researchers in the DMFT community to share their latest insights and stimulate new collaborations. Topics of particular interest are (i) the development of new and improved impurity solvers, (ii) efforts to incorporate non-local correlations into the DMFT formalism via cluster approaches or diagrammatic techniques, and (iii) applications of state-of-the-art methods to challenging materials such as transition metal or actinide compounds. The workshop will also provide a platform for emerging fields such as DMFT calculations for bosonic systems or non-equilibrium DMFT.
Alexander I. Lichtenstein
(University of Hamburg)
(Swiss Federal Institute of Technology Zurich (ETHZ))
(University of Fribourg)