Three-body correlation in the diluted generalized Hubbard model
Por:
Navarro O., Avignon M.
Publicada:
1 ene 1998
Resumen:
A real-space method has been used to solve the generalized Hubbard Hamiltonian for a system with few electrons. The method is based on mapping the correlated many-body problem onto an equivalent tight-binding one in a higher dimensional space. For a linear chain, we have obtained an exact solution of the problem of three non-parallel electrons. The three-body correlation are studied by examining the binding energy in the ground state, for different values of the hopping parameters and of the on-site (U) and nearest-neighbor (V) interactions.
Filiaciones:
Navarro O.:
U.N.A.M., Mexico, Mexico
Avignon M.:
U.N.A.M., Mexico, Mexico
|