Eliashberg equations with momentum-dependent kernals for the two-dimensional Hubbard model
- Gerhard-Mercator-Univeitat, Duisburg (Germany)
The authors discuss the impact of the strong electron phonon interactions on the physical properties of correlated electrons in the two-dimensional Hubbard model. An easy access to the physical properties of the superconducting state is obtained by solving the Eliashberg equations with explicit momentum-dependent kernels. In order to facilitate the numerical procedure to solve these equations, correlations are treated within the Gutzwiller approximation (i.e., mean-field-slave boson approximation). The authors results strongly support the view that d-wave symmetry is the most important feature of the superconducting state in the copper oxides. A possible extension beyond the mean field approximation is also presented.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 269732
- Journal Information:
- Journal of Superconductivity, Vol. 9, Issue 1; Other Information: PBD: Feb 1996
- Country of Publication:
- United States
- Language:
- English
Similar Records
Anisotropic superconductivity in the two-dimensional Hubbard model
Finite-temperature real-energy-axis solutions of the isotropic Eliashberg integral equations