BCS states and D-wave con
BCS states and D-wave condensates in the 2D Hubbard model
BCS states and D-wave condensates in the 2D Hubbard model
We consider states of BCS form in the 2D Hubbard model which, starting from some arbitrary point in state space in the neighborhood of a Hartree-Fock ground state, are relaxed within that BCS ansatz to local minima of the energy. As in the Hartree-Fock approximation there are a vast number of local …
