Physique De La Matière Condensée

Antoine GeorgesPhysique de la matière condenséeAnnée 2024-2025Colloque : Recent Advances and Applications of Diagrammatic Monte Carlo for FermionsThomas Schäfer : Bridging the Gap of Multi-Method, Multi-Messenger Studies from Known to Unknown FluctuationsThomas SchäferMax Planck Institute for Solid State Research, StuttgartRésuméThe strong mutual repulsion of electrons is responsible for some of the most interesting phenomena in contemporary condensed matter physics, where examples range from unconventional high-temperature superconductivity, over quantum criticality to Mott metal-to-insulator transitions. Despite the intense research on the quantum many-body problem over the last decades, many of its aspects have not yet been fully understood. Recent progress, however, has been achieved by the application of so-called multi-method, multi-messenger studies of the most fundamental model for electronic correlations, the Hubbard model [1,2].In the first part of the talk, I will present such a study of the half-f