This model involves a four-fermion interaction with spin and momentum conservation, resulting in a singlet bound state allowed by the instability of the Fermi surface under an arbitrarily small attractive force.
This model involves a four-fermion interaction with spin and momentum conservation, resulting in a singlet bound state allowed by the instability of the Fermi surface under an arbitrarily small attractive force. The energy gap between the Bloch individual particle model and the state predicted by this model is consistent with the isotope effect. The density of states near the Fermi surface and the electron-phonon interaction strength determine the temperature for the second order phase transition to the state described by this theory. The Meissner effect is correctly predicted by, FTP, this model using Cooper pairs to explain conventional superconductivity.
This model involves a four-fermion interaction with spin and momentum conservation, resulting in a singlet bound state allowed by the instability of the Fermi surface under an arbitrarily small attractive force.
{BCS} or {Bardeen Cooper Schrieffer} theory