TBA Equations of 1D Hubbard Model and High-Temperature Expansion

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New numerical method to calculate thermodynmic Bethe ansatz equations is proposed based on Newton's method. Thermodynamic quantities of one-dimensional Hubbard model is numerically calculated and compared with high temperature expansion and numerical results of quantum transfer matrix method by Jüttner, Klümper and Suzuki. The coincidence is surprisingly good. We get high-temperature expansion of grand potential up to $β^6$.
16 pages, 3 figures, 1 tables, 1 mathematica notebook

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Strongly Correlated Electrons, Statistical Mechanics

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http://salesiana.dossiersoluciones.com/handle/123456789/18459

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0110645
 http://arxiv.org/abs/cond-mat/0110645

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arXiv