Campana, L.S.; Caramico D'Auria, A.; D'Ambrosio, M.; De … - In: Physica A: Statistical Mechanics and its Applications 123 (1984) 1, pp. 279-295
The paper is devoted to an investigation of the damping effects of the Fermion elementary excitations in the Jordan-Wigner representation of a one-dimensional anisotropic spin-12 model in an external field. This is realized on the basis of the “Gaussian ansatz”, recently proposed by Nolting...