Physics – Condensed Matter – Statistical Mechanics
Scientific paper
2003-08-18
J.Phys.A37:1747-1758,2004
Physics
Condensed Matter
Statistical Mechanics
18 pages, LaTeX; some explanations, 2 figures, one reference added; typos corrected; to appear in J. Phys. A: Math. Gen
Scientific paper
10.1088/0305-4470/37/5/019
We propose a nonlinear integral equation (NLIE) with only one unknown function, which gives the free energy of the integrable one dimensional Heisenberg model with arbitrary spin. In deriving the NLIE, the quantum Jacobi-Trudi and Giambelli formula (Bazhanov-Reshetikhin formula), which gives the solution of the T-system, plays an important role. In addition, we also calculate the high temperature expansion of the specific heat and the magnetic susceptibility.
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