works on

From the 1 of 8.2k papers with an AI index.

output
19912026
Showing 2009 · cond-mat.str-elShow all

15 papers · 2 filters

cond-mat.str-el2009★ 10 cited

Interaction induced Fermi-surface renormalization in the Hubbard model close to the Mott-Hubbard transition

Luca F. Tocchio, Federico Becca, Claudius Gros

We investigate the nature of the interaction-driven Mott-Hubbard transition of the half-filled Hubbard model in one dimension, using a full-fledged variational Monte Ca…

cond-mat.str-el2009★ 17 cited

Kondo impurity on the honeycomb lattice at half-filling

Luca Dell'Anna

We consider a Kondo-like impurity interacting with fermions on a honeycomb lattice at half-filling, as in the case of graphene. We derive from the lattice model an effective one-di…

cond-mat.str-el2009★ 25 cited

Strongly correlated metal interfaces in the Gutzwiller approximation

Giovanni Borghi, Michele Fabrizio, Erio Tosatti

We study the effect of spatial inhomogeneity on the physics of a strongly correlated electron system exhibiting a metallic phase and a Mott insulating phase, represented by the sim…

cond-mat.str-el2009★ 74 cited

Real-Time Dynamics in Quantum Impurity Models with Diagrammatic Monte Carlo

Marco Schiró

We extend the recently developed real-time Diagrammatic Monte Carlo method, in its hybridization expansion formulation, to the full Kadanoff-Baym-Keldysh contour. This allows us to…

cond-mat.str-el2009★ 25 cited

Superconductivity in the doped bilayer Hubbard model

Nicola Lanata`, Paolo Barone, Michele Fabrizio

We study by the Gutzwiller approximation the melting of the valence bond crystal phase of a bilayer Hubbard model at sufficiently large inter-layer hopping. We find that a supercon…

cond-mat.str-el2009★ 26 cited

Ground-state properties of the disordered Hubbard model in two dimensions

Maria Elisabetta Pezzoli, Federico Becca

We study the interplay between electron correlation and disorder in the two-dimensional Hubbard model at half-filling by means of a variational wave function that can interpolate b…