6 citations · 6 across the 2 of their papers we have counts for
3 papers
Effective Hamiltonian for a Half-filled Asymmetric Ionic Hubbard Chain with Alternating On-site Interaction
Inna Grusha, Mikheil Menteshashvili, George I. Japaridze
We derive an effective spin Hamiltonian for the one-dimensional half-filled asymmetric ionic Hubbard model with alternating on-site interaction in the limit of strong repulsion. It…
Variational ground states of the two-dimensional Hubbard model
D. Baeriswyl, D. Eichenberger, M. Menteshashvili
Recent refinements of analytical and numerical methods have improved our understanding of the ground-state phase diagram of the two-dimensional (2D) Hubbard model. Here we focus on…
Effective Hamiltonian for a half-filled tetramerized ionic-Hubbard chain
M. Menteshashvili, N. Chachava, G. I. Japaridze
We derive an effective spin Hamiltonian for the one-dimensional half-filled tetramerized ionic-Hubbard model in the limit of strong on-site repulsion. We show that the effective Ha…