2 papers
cond-mat.supr-con1998
Metal-insulator crossover in the Boson-Fermion model in infinite dimensions
J. -M. Robin, A. Romano, J. Ranninger
The Boson-Fermion model, describing a mixture of tightly bound electron pairs and quasi-free electrons hybridized with each other via a charge exchange term, is studied in the limi…
cond-mat.str-el1998
Electronic and phononic states of the Holstein-Hubbard dimer of variable length
M. Acquarone, J. R. Iglesias, M. A. Gusmao +2
We consider a model Hamiltonian for a dimer including all the electronic one- and two-body terms consistent with a single orbital per site, a free Einstein phonon term, and an elec…