262 citations · 1.7k across the 51 of their papers we have counts for
4 papers · 1 filter
Pairs, trimers and BCS-BEC crossover near a flat band: the sawtooth lattice
Giuliano Orso, Manpreet Singh
We investigate pairing and superconductivity in the attractive Fermi Hubbard model on the one-dimensional sawtooth lattice, which exhibits a flat band by fine-tuning the hopping ra…
Unconventional pairing in few-fermion systems tuned by external confinement
Jacek Dobrzyniecki, Giuliano Orso, Tomasz Sowiński
We study the ground-state properties of a two-component one-dimensional system of a few ultra-cold fermions with attractive interactions. We show that, by ramping up an external po…
Detecting delocalization-localization transitions from full density distributions
Miroslav Hopjan, Giuliano Orso, Fabian Heidrich-Meisner
Characterizing the delocalization transition in closed quantum systems with a many-body localized phase is a key open question in the field of nonequilibrium physics. We exploit th…
Quantum Monte Carlo simulations of two-dimensional repulsive Fermi gases with population imbalance
S. Pilati, G. Orso, G. Bertaina
The ground-state properties of two-component repulsive Fermi gases in two dimensions are investigated by means of fixed-node diffusion Monte Carlo simulations. The energy per parti…