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TT: Tiefe Temperaturen

TT 31: Correlated Electrons: Metal Insulator Transition - Part 2

TT 31.15: Talk

Thursday, March 30, 2006, 17:45–18:00, HSZ 301

Stochastic Green’s function approach to disordered systems — •Andreas Alvermann and Holger Fehske — Institut für Physik, Ernst-Moritz-Arndt Universität Greifswald, 17487 Greifswald, Germany

We adopt a stochastic approach based on distributions of Green’s functions to study the electronic structure of disordered systems. Exemplarily, we address Anderson localisation as well as cluster effects in binary alloys. Combining this stochastic Green’s function approach with dynamical mean field theory, we investigate the competition between polaron formation and Anderson localisation in a generic model for a disordered electron-phonon system.