The Field Perturbation Theory of the Double Correlated Phase in High Temperature Superconductors

Details The Field Perturbation Theory of the Double Correlated Phase in High Temperature Superconductors The Field Perturbation Theory of the Double Correlated Phase in High Temperature Superconductors

2007-05-13

arxiv.org/abs/0705.1829v2

Physics

Condensed Matter

Superconductivity

23 pages Of MSWord in PDF format, 1 figure

Scientific paper

The Double-Correlated phase in HTSC, and its treatment by field perturbation theory, is established. In particular, we define the ground state, the quasi-particle excitations, and construct an appropriate field. We also derive the unperturbed Hamiltonian, and the propagators for the unperturbed state. Then we discuss the perturbation Hamiltonian, and show that the Hartree diagram is significant for both the pseudogap and the superconductive order parameter, and suggest that it yields the major contribution to these parameters.

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