The Physical Basis of Integrable Spin Models
arXiv:cond-mat/0208039
Abstract
Integrable models are often constructed with real systems in mind. The exact solvability of the models leads to results which are unambiguous and provide the correct physical picture. In this review, we discuss the physical basis of some integrable spin models and their relevance in the study of real systems. The emphasis in the review is on physical understanding rather than on the mathematical aspects of integrability.
19 pages, latex, two figures, to appear in the Special Issue on integrable systems, Proceedings of the Indian National Science Academy