447 citations · 3.1k across the 40 of their papers we have counts for
6 papers · 1 filter
Double quantum dot as a minimal thermoelectric generator
S. Donsa, S. Andergassen, K. Held
Based on numerical renormalization group calculations, we demonstrate that experimentally realized double quantum dots constitute a minimal thermoelectric generator. In the Kondo r…
From infinite to two dimensions through the functional renormalization group
C. Taranto, S. Andergassen, J. Bauer +5
We present a novel scheme for an unbiased and non-perturbative treatment of strongly correlated fermions. The proposed approach combines two of the most successful many-body method…
Poor Man's Understanding of Kinks Originating from Strong Electronic Correlations
K. Held, R. Peters, A. Toschi
By means of dynamical mean field theory calculations, it was recently discovered that kinks generically arise in strongly correlated systems, even in the absence of external bosoni…
Mott-Hubbard transition in V2O3 revisited
P. Hansmann, A. Toschi, G. Sangiovanni +4
The isostructural metal-insulator transition in Cr-doped V2O3 is the textbook example of a Mott-Hubbard transition between a paramagnetic metal and a paramagnetic insulator. We rev…
Effective crystal field and Fermi surface topology: a comparison of d- and dp-orbital models
N. Parragh, G. Sangiovanni, P. Hansmann +3
The effective crystal field in multi-orbital correlated materials can be either enhanced or reduced by electronic correlations with crucial consequences for the topology of the Fer…
One-particle irreducible functional approach - a new route to diagrammatic extensions of DMFT
G. Rohringer, A. Toschi, H. Hafermann +3
We present an approach which is based on the one-particle irreducible (1PI) generating functional formalism and includes electronic correlations on all length-scales beyond the loc…