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Effective functional for the supercoherent state of spinless algebra in the Hubbard model

โœ Scribed by V. S. Kirchanov; V. M. Zharkov

Book ID
106525306
Publisher
Springer
Year
2011
Tongue
English
Weight
430 KB
Volume
54
Category
Article
ISSN
1573-9228

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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 โ€ข 4 cluster, we obtain a large enhancement of d-wave pairing correlation functions for optimum doping. The physical picture is co