arXiv:cond-mat/0308333 · Journal of Physics A Mathematical and General
From the quantum Jacobi–Trudi and Giambelli formula to a nonlinear integral equation for thermodynamics of the higher spin Heisenberg model
Zengo Tsuboi
Abstract
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.