• Eletronic and phonomic states of the Holstein-Hubbard dimer of variable length 

      Acquarone, C.; Iglesias, Jose Roberto; Gusmao, Miguel Angelo Cavalheiro; Noce, A.; Romano, Alfonso (1998) [Artigo de periódico]
      We consider a model Hamiltonian for a dimer of length a including all the electronic one- and two-body terms consistent with a single orbital per site, a free Einstein phonon term for a frequency V, and an electronphonon ...