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TT: Fachverband Tiefe Temperaturen

TT 79: Correlated Electrons - Poster Session

TT 79.26: Poster

Mittwoch, 2. April 2014, 15:00–19:00, P2

Exact diagonalization techniques for strongly correlated systems — •Sareh Motahari and David Jacob — Max-Planck-Institut für Mikrostrukturphysik, Weinberg 2, D-06120 Halle, Germany

Gaining an understanding of strongly correlated electron materials and nanoscale devices is one of the main challenges of condensed matter physics. One of the most important models in this context is the Anderson impurity model which is central to the understanding of the Kondo effect [1] and is at the heart of the Dynamical Mean-Field Theory [2]. Here we explore different techniques based on exact diagonalization of finite Anderson models for the description of strong correlations in nanoscale systems and molecules with transition metal centers. In particular, we explore the use of the novel Distributional Exact Diagonalization [3] method for the description of the Kondo effect in realistic systems.
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Kotliar et al., Rev. Mod. Phys. 78, 865 (2006)
Granth and Strand, Phys. Rev. B 86, 115111 (2012)