2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/169714Cooper problem for interacting fermions is solved in a lattice. It is found that the binding energy of the Cooper problem can behave qualitatively differently from the gap parameter of the BCS theory and that pairs of non-zero center of mass momentum are favored in systems with unequal Fermi energies.4 pages, 3 figuresStatistical MechanicsSuperconductivitytext