Please use this identifier to cite or link to this item: http://hdl.handle.net/10995/101983
Title: Diagrammatic routes to nonlocal correlations beyond dynamical mean field theory
Authors: Rohringer, G.
Hafermann, H.
Toschi, A.
Katanin, A. A.
Antipov, A. E.
Katsnelson, M. I.
Lichtenstein, A. I.
Rubtsov, A. N.
Held, K.
Issue Date: 2018
Publisher: American Physical Society
Citation: Diagrammatic routes to nonlocal correlations beyond dynamical mean field theory / G. Rohringer, H. Hafermann, A. Toschi, et al. — DOI 10.1103/RevModPhys.90.025003 // Reviews of Modern Physics. — 2018. — Vol. 90. — Iss. 2. — 025003.
Abstract: Strong electronic correlations pose one of the biggest challenges to solid state theory. Recently developed methods that address this problem by starting with the local, eminently important correlations of dynamical mean field theory (DMFT) are reviewed. In addition, nonlocal correlations on all length scales are generated through Feynman diagrams, with a local two-particle vertex instead of the bare Coulomb interaction as a building block. With these diagrammatic extensions of DMFT long-range charge, magnetic, and superconducting fluctuations as well as (quantum) criticality can be addressed in strongly correlated electron systems. An overview is provided of the successes and results achieved, mainly for model Hamiltonians, and an outline is given of future prospects for realistic material calculations. © 2018 American Physical Society.
Keywords: QUANTUM THEORY
DYNAMICAL MEAN-FIELD THEORY
MODEL HAMILTONIANS
NONLOCAL CORRELATIONS
REALISTIC MATERIALS
SOLID STATE THEORY
STRONG ELECTRONIC CORRELATIONS
STRONGLY CORRELATED ELECTRON SYSTEM
SUPERCONDUCTING FLUCTUATIONS
MEAN FIELD THEORY
URI: http://hdl.handle.net/10995/101983
Access: info:eu-repo/semantics/openAccess
SCOPUS ID: 85047304852
PURE ID: 7279882
ISSN: 346861
DOI: 10.1103/RevModPhys.90.025003
Appears in Collections:Научные публикации, проиндексированные в SCOPUS и WoS CC

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