Spinons in Magnetic Chains of Arbitrary Spins at Finite Temperatures
arXiv:cond-mat/9807076 · doi:10.1088/0305-4470/32/12/008
Abstract
The thermodynamics of solvable isotropic chains with arbitrary spins is addressed by the recently developed quantum transfer matrix (QTM) approach. The set of nonlinear equations which exactly characterize the free energy is derived by respecting the physical excitations at T=0, spinons and RSOS kinks. We argue the implication of the present formulation to spinon character formula of level k=2S SU(2) WZWN model .
25 pages, 8 Postscript figures, Latex 2e,uses graphicx, added figures and detailed discussions