25 citations · 25 across the 1 of their papers we have counts for
4 papers
Quantum phase diagram of the half filled Hubbard model with bond-charge interaction
A. O. Dobry, A. A. Aligia
Using quantum field theory and bosonization, we determine the quantum phase diagram of the one-dimensional Hubbard model with bond-charge interaction in addition to the usual C…
Excitations with fractional spin less than 1/2 in frustrated magnetoelastic chains
C. J. Gazza, A. O. Dobry, D. C. Cabra +1
We study the magnetic excitations on top of the plateaux states recently discovered in spin-Peierls systems in a magnetic field. We show by means of extensive density matrix renorm…
Stability of correlated electronic systems under the influence of the electron-phonon interaction
A. Greco, A. Dobry
We have used an exact diagonalization technique to study the stability of the -Holstein and Hubbard-Holstein models under the influence of the electron-phonon interaction. Pre…
Exact diagonalization study of the two-dimensional t-J-Holstein model
A. Dobry, A. Greco, S. Koval +1
We study by exact diagonalization the two-dimensional t-J-Holstein model near quarter filling by retaining only few phonon modes in momentum space. This truncation allows us to inc…