90 citations · 90 across the 3 of their papers we have counts for
4 papers
Dynamical behavior across the Mott transition of two bands with different bandwidths
Michel Ferrero, Federico Becca, Michele Fabrizio +1
We investigate the role of the bandwidth difference in the Mott metal-insulator transition of a two-band Hubbard model in the limit of infinite dimensions, by means of a Gutzwiller…
The resonating valence bond wave functions in quantum antiferromagnets
Alberto Parola, Sandro Sorella, Federico Becca +1
Projected-BCS wave functions have been proposed as the paradigm for the understanding of disordered spin states (spin liquids). Here we investigate the properties of these wave fun…
Projected BCS Wave Functions for Low Dimensional Frustrated Spin Systems
Luca Capriotti, Federico Becca, Alberto Parola +1
Twenty-five years after the first proposal, the question whether the ground state of a frustrated spin-half system is well described by a spin-liquid Resonating Valence Bond (RVB)…
Stability of d-wave superconductivity in the t-J model
Federico Becca, Luca Capriotti, Sandro Sorella
We use a recently developed technique, which allows to perform few Lanczos steps on a given wavefunction even for large system sizes, to investigate the model in the physic…