Meetings/Workshops on Computational Physics and Numerical Simulation in Germany

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1
Autumn School on Correlated Electrons:The Physics of Correlated Insulators, Metals, and Superconductors
25 Sep 2017 - 29 Sep 2017 • Jülich, Germany
Abstract:
A naive distinction between metals and insulators rests on the single-electron picture: completely filled or empty bands characterize insulators while metals have some partially filled bands. Nature, however, offers a much richer variety of behaviors: Mott insulators would be band metals in the absence of electron correlation while strongly-correlated metals behave quasiparticle-like only in the Fermi-liquid regime. Correlated metals and insulators can be distinguished by the gap in the spectral function. Superconductors form a class of their own, they have a single-electron gap but are not insulators. This year’s school addresses the rich physics of correlated insulators, metals, and superconductors. Insulators show complex ordering phenomena involving charge, spin, and orbital degrees of freedom. Correlated metals exhibit non-Fermi-liquid behavior except right at the Fermi surface. Superconductors are dominated by the delicate interplay of coupling bosons and quasiparticles. Along with the phenomena, the models and methods for understanding and classifying them will be explained. The aim of the school is to introduce advanced graduate students and up to the modern approaches for modeling strongly correlated materials and analyzing their behavior.
Contact:
Eva Pavarini;     Email: e.pavarini@fz-juelich.de
Topics:
Hubbard model, metal-insulator transition, orbital physics, exchange mechanisms, DMFT, CPA, QMC for lattice fermions, electron-phonon coupling, superconductivity, BCS, Hund's metals, geometrical phases, Kondo effect, RKKY interaction, Gutzwiller density-functional theory, path integrals, dual fermions, finite temperature Lanczos, density-functional theory of superconductivity, criteria to distinguish insulators, metals, and superconductors.
Event listing ID:
882200

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Last updated: 02 March 2017