75 citations · 118 across the 4 of their papers we have counts for
4 papers
Equivalence of Gutzwiller and slave-boson mean-field theories for multi-band Hubbard models
Joerg Buenemann, Florian Gebhard
We demonstrate that a recently introduced slave-boson mean-field theory is equivalent to our Gutzwiller theory for multi-band Hubbard models with general onsite interactions. We re…
On the way to a Gutzwiller density functional theory
W. Weber, J. Buenemann, F. Gebhard
Multi-band Gutzwiller-correlated wave functions reconcile the contrasting concepts of itinerant band electrons versus electrons localized in partially filled atomic shells. The exa…
Spin-Waves in itinerant ferromagnets
J. Buenemann
We introduce a novel approach for the investigation of spin-wave excitations in itinerant ferromagnets. Our theory is based on a variational treatment of general multi-band Hubbard…
Gutzwiller-correlated wave functions for degenerate bands: exact results in infinite dimensions
Joerg Buenemann, Florian Gebhard, Werner Weber
We introduce Gutzwiller-correlated wave functions for the variational investigation of general multi-band Hubbard models. We set up a diagrammatic formalism which allows us to eval…