90 citations · 177 across the 7 of their papers we have counts for
5 papers · 1 filter
Local moments and magnetic order in the two-dimensional Anderson-Mott transition
Maria Elisabetta Pezzoli, Federico Becca, Michele Fabrizio +1
We study the role of electronic correlation in a disordered two-dimensional model by using a variational wave function that can interpolate between Anderson and Mott insulators. Wi…
Magnetic field-induced transition in a quantum magnet described by the Quantum Dimer Model
A. Ralko, F. Becca, D. Poilblanc
The effect of a magnetic field on a gapped quantum magnet is described within the framework of the Quantum Dimer Model. A minimal model describing the proliferation of itinerant sp…
Role of backflow correlations for the non-magnetic phase of the t-t' Hubbard model
Luca F. Tocchio, Federico Becca, Alberto Parola +1
We introduce an efficient way to improve the accuracy of projected wave functions, widely used to study the two-dimensional Hubbard model. Taking the clue from the backflow contrib…
Time-dependent Gutzwiller theory of pairing fluctuations in the Hubbard model
G. Seibold, F. Becca, J. Lorenzana
We present a method to compute pairing fluctuations on top of the Gutzwiller approximation (GA). Our investigations are based on a charge-rotational invariant GA energy functional…
Mott transition in bosonic systems: Insights from the variational approach
Manuela Capello, Federico Becca, Michele Fabrizio +1
We study the Mott transition occurring for bosonic Hubbard models in one, two, and three spatial dimensions, by means of a variational wave function benchmarked by Green's function…