| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1819630 | Physica C: Superconductivity and its Applications | 2010 | 5 Pages |
Abstract
We transform the quartic Hubbard terms in the extended Hubbard model to a quadratic form by making the Hubbard-Stratonovich transformation for the electron operators. This transformation allows us to derive exact results for mass operator and charge-charge and spin-spin correlation functions for s-wave superconductivity. We discuss the application of the method to the d-wave superconductivity.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
Z.G. Koinov,