96 citations · 267 across the 13 of their papers we have counts for
13 papers
FFLO oscillations and magnetic domains in the Hubbard model with off-diagonal Coulomb repulsion
A. Anfossi, C. Degli Esposti Boschi, A. Montorsi
We observe the effect of non-zero magnetization m onto the superconducting ground state of the one dimensional repulsive Hubbard model with correlated hopping X. For t/2 < X < 2t/3…
Detecting the tunneling rates for strongly interacting fermions on optical lattices
Alberto Anfossi, Luca Barbiero, Arianna Montorsi
Strongly interacting fermionic atoms on optical lattices are studied through a Hubbard-like model Hamiltonian, in which tunneling rates of atoms and molecules between neighboring s…
Phase diagram of imbalanced strongly interacting fermions on a one-dimensional optical lattice
Alberto Anfossi, Luca Barbiero, Arianna Montorsi
We show that the Hubbard Hamiltonian with particle-assisted tunneling rates --recently proposed to model a fermionic mixture near a broad Feshbach resonance-- displays a ground sta…
Nanoscale phase separation and superconductivity in the one-dimensional Hirsch model
Alberto Anfossi, Cristian Degli Esposti Boschi, Arianna Montorsi
We investigate numerically at various fillings the ground state of the one-dimensional Hubbard model with correlated hopping x (Hirsch model). It is found that, for a wide range of…
Momentum-space analysis of multipartite entanglement at quantum phase transitions
Alberto Anfossi, Paolo Giorda, Arianna Montorsi
We investigate entanglement properties at quantum phase transitions of an integrable extended Hubbard model in the momentum space representation. Two elementary subsystems are reco…
Structure of quantum correlations in momentum space and off diagonal long range order in eta pairing and BCS states
Paolo Giorda, Alberto Anfossi
The quantum states built with the eta paring mechanism i.e., eta pairing states, were first introduced in the context of high temperature superconductivity where they were recogniz…