Evidence for d-wave superconductivity in the repulsive Hubbard model
β Scribed by W. Fettes; I. Morgenstern
- Book ID
- 113055835
- Publisher
- Springer
- Year
- 1999
- Tongue
- English
- Weight
- 263 KB
- Volume
- 9
- Category
- Article
- ISSN
- 1434-6036
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
The two-dimensional Hubbard model has been studied within the Composite Operator Method (COM) [1] starting from a basis made of the two Hubbard composite fields in the Nambu representation and computing the residual self-energy in the non-crossing approximation (NCA) [2]. The charge-charge, spinspin
We consider the effective extended Hubbard Hamiltonian for the cuprates, with nearest-neighbor hopping which depends on the occupation. Using exact diagonalization in a 4 β’ 4 cluster, we obtain a large enhancement of d-wave pairing correlation functions for optimum doping. The physical picture is co