78 citations · 134 across the 4 of their papers we have counts for
4 papers
Unscreened Coulomb repulsion in the one dimensional electron gas
G. Fano, F. Ortolani, A. Parola +1
A tight binding model of electrons interacting via bare Coulomb repulsion is numerically investigated by use of the Density Matrix Renormalization Group method which we prove appli…
Density matrix renormalization group study of dimerization of the Pariser-Parr-Pople model of polyacetilene
G. L. Bendazzoli, S. Evangelisti, G. Fano +2
We apply the DMRG method to the Pariser-Parr-Pople hamiltonian and investigate the onset of dimerization. We deduce the parameters of the hopping term and the contribution of the s…
The density matrix renormalization group method. Application to the PPP model of a cyclic polyene chain
G. Fano, F. Ortolani, L. Ziosi
The density matrix renormalization group (DMRG) method introduced by White for the study of strongly interacting electron systems is reviewed; the method is variational and conside…
Numerical results for generalized RVB wavefunctions
G. Fano, F. Ortolani, L. Ziosi
Numerical results are presented for a generalized resonance valence bond state which includes both ionic and covalent contributions in each bond ; non nearest-neighbor bonds are al…