5 papers
Quantum Magnets with Anisotropic Infinite Range Random Interactions
Liliana Arrachea, Marcelo J. Rozenberg
Using exact diagonalization techniques we study the dynamical response of the anisotropic disordered Heisenberg model for systems of S=1/2 spins with infinite range random exchange…
Compressibility Divergence and Mott Endpoints
G. Kotliar, Sahana Murthy, M. J. Rozenberg
In the context of the dynamical mean field theory of the Hubbard model, we study the compressibility near the density driven Mott transition at finite temperatures. We demonstrate…
The anomalous metallic ferromagnetic state of Sr doped manganites
V. Ferrari, M. J. Rozenberg, R. Weht
We deduce a model relevant for the anomalous metallic state of Sr doped manganites at low temperatures within the ferromagnetic phase. It provides a natural explanation to several…
The Local Impurity Self Consistent Approximation (LISA) to Strongly Correlated Fermion Systems and the Limit of Infinite Dimensions
A. Georges, G. Kotliar, W. Krauth +1
We review the dynamical mean-field theory of strongly correlated fermion systems which is based on a mapping of lattice models onto quantum impurity models subject to a self-consis…
Critical Properties of the Mott Transition in the Hubbard Model
Goetz Moeller, Qimiao Si, Gabriel Kotliar +1
We introduce a systematic low-energy approach to strongly correlated electron systems in infinite dimensions, and apply it to the problem of the correlation-induced metal-insulator…