Abstract
The electronic properties in a metallic system close to the metal-insulator transition play a crucial role in high Tc superconductor theory. Among others, the Hubbard model has been extensively studied using different methods [1–8]. In particular, the one-dimensional Hubbard Hamiltonian (H-H) is considered as the most simplified model able to treat the main characteristics of the highly correlated electron systems including the metal insulator transition. Numerical studies have shown that at half-filling this model has long-range antiferromagnetic order [3]. Recently [7–8], it has also been studied the behavior of different properties away from half-filling.
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Aliaga, J., Proto, A.N., Zunino, V. (1992). Grand-Canonical Description of the Hubbard Hamiltonian. In: Proto, A.N., Aliaga, J.L. (eds) Condensed Matter Theories. Condensed Matter Theories, vol 7. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-3352-8_30
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DOI: https://doi.org/10.1007/978-1-4615-3352-8_30
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