18 citations · 19 across the 6 of their papers we have counts for
4 papers · 1 filter
Numerical observation of Nagaoka ferromagnetism
Thomas Botzung, Pierre Nataf
We provide numerical evidence of the Nagaoka's theorem in the Fermi-Hubbard model on various cluster geometries, such as the square, the honeycomb and the triangul…
Exact Diagonalization of Fermi-Hubbard Models
Thomas Botzung, Pierre Nataf
We show how to perform exact diagonalizations of Fermi-Hubbard models on -site clusters separately in each irreducible representation ({irrep}) of $\mathrm{SU}(…
Effects of energy extensivity on the quantum phases of long-range interacting systems
Thomas Botzung, David Hagenmüller, Guido Masella +4
We investigate the ground state properties of one-dimensional hard-core bosons interacting via a variable long-range potential using the density matrix renormalization group. We de…
One-dimensional extended Hubbard model with soft-core potential
Thomas Botzung, Guido Pupillo, Pascal Simon +2
We investigate the phase diagram of a variant of the one-dimensional extended Hubbard model where particles interact via a finite-range soft-shoulder potential. Using Density…