Cluster Dynamical Mean Field Analysis of the Mott transition

COFFEE_KLATCH · Invited

Abstract

I will present recent results on the evolution from an anomalous metallic phase to a Mott insulator within the two dimensional Hubbard model, using a cluster extension of dynamical mean field theory. In particular, the density-driven Mott metal-insulator transition is approached in a non-uniform way in different regions of the momentum space. This gives rise to a breakup of the Fermi surface and to the formation of hot and cold regions, whose position depends on the hole or electron like nature of the carriers in the system.

Authors

  • Olivier Parcollet

    CEA-Saclay, SPhT CEA Saclay, CEA-Saclay. FRANCE, Service de Physique Theorique, CEA Saclay , 91191, Gif-Sur Yvette, France