Sorry, I don't understand your search. ×
Back to Search Start Over

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.
Rohringer, G.
Hafermann, H.
Toschi, A.
Katanin, A. A.
Antipov, A. E.
Katsnelson, M. I.
Lichtenstein, A. I.
Rubtsov, A. N.
Held, K.
Source :
Rev. Mod. Phys.; Reviews of Modern Physics
Publication Year :
2018

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.

Details

Database :
OAIster
Journal :
Rev. Mod. Phys.; Reviews of Modern Physics
Notes :
English
Publication Type :
Electronic Resource
Accession number :
edsoai.on1280535848
Document Type :
Electronic Resource