332 citations · 1.5k across the 33 of their papers we have counts for
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Theoretical constraints for the magnetic-dimer transition in two-dimensional spin models
Leonardo Spanu, Federico Becca, Sandro Sorella
From general arguments, that are valid for spin models with sufficiently short-range interactions, we derive strong constraints on the excitation spectrum across a continuous phase…
Do Bose metals exist in Nature?
S. Sorella
We revisit the concept of superfluidity in bosonic lattice models in low dimensions. Then, by using numerical and analytical results obtained previously for equivalent spinless fer…
Unconventional metal-insulator transition in two dimensions
Manuela Capello, Federico Becca, Seiji Yunoki +1
We show, by using a correlated Jastrow wave function and a mapping onto a classical model, that the two-dimensional Mott transition in a simple half-filled one-band model can be un…
From Luttinger liquid to Mott insulator: the correct low-energy description of the one-dimensional Hubbard model by an unbiased variational approach
Manuela Capello, Federico Becca, Seiji Yunoki +2
We show that a particular class of variational wave functions reproduces the low-energy properties of the Hubbard model in one dimension. Our approach generalizes to finite on-site…
Diffusion Monte Carlo with lattice regularization
Michele Casula, Claudia Filippi, Sandro Sorella
We introduce an efficient lattice regularization scheme for quantum Monte Carlo calculations of realistic electronic systems. The kinetic term is discretized by a finite difference…
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…