Breakdown of the Nagaoka phase at finite doping
The Nagaoka (U =∞) limit of the Hubbard model on a square lattice is mapped onto the itinerant-localized Kondo model at infinitely strong coupling. Such a model is well suited to perform quantum Monte Carlo (QMC) simulations to compute spin correlation functions. For periodic boundary conditions, th...
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| Principais autores: | , , |
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| Formato: | article |
| Idioma: | English |
| Publicado em: |
American Physical Society
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| Endereço do item: | https://repositorio.ufrn.br/jspui/handle/123456789/28806 https://doi.org/10.1103/PhysRevB.95.155115 |
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