期刊
PHYSICAL REVIEW B
卷 65, 期 16, 页码 -出版社
AMERICAN PHYSICAL SOC
DOI: 10.1103/PhysRevB.65.165104
关键词
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A numerical method to calculate thermodynmic Bethe ansatz equations is proposed based on Newton's method. Thermodynamic quantities of the one-dimensional Hubbard model are numerically calculated and compared with high-temperature expansion and numerical results of the quantum transfer matrix method by Juttner, Klumper, and Suzuki. The coincidence is surprisingly good. We obtain the high-temperature expansion of the grand potential up to beta(6).
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