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TT: Fachverband Tiefe Temperaturen

TT 4: Disordered Quantum Systems

TT 4.1: Hauptvortrag

Montag, 16. März 2020, 09:30–10:00, HSZ 204

Towards an ab-initio theory of Anderson localization with correlated electrons — •Liviu Chioncel — Uni. Augsburg

Great progress has been made in recent years towards understanding the properties of disordered electronic systems. This is made possible by recent advances in quantum effective medium methods which include Dynamical Mean-Field Theory and the Coherent Potential Approximation, and their cluster extension, the Dynamical Cluster Approximation. The recently developed typical medium dynamical cluster approximation captures disorder-induced localization and provides an order parameter for the Anderson localized states. We present an overview of various recent applications of the typical medium single-site and dynamical cluster approximation to the Hubbard model, and its combination to realistic systems in the framework of Density Functional Theory.