Artigo
Conservation laws for Z(N) symmetric quantum spin models and their exact ground state energies
Registro en:
Nuclear Physics, Section B, v. 275, n. 3, p. 436-458, 1986.
0550-3213
10.1016/0550-3213(86)90608-5
2-s2.0-0039633548
Autor
Alcaraz, Francisco C.
Lima Santos, A. [UNESP]
Resumen
We derive an infinite set of conserved charges for some Z(N) symmetric quantum spin models by constructing their Lax pairs. These models correspond to the Potts model, Ashkin-Teller model and the particular set of self-dual Z(N) models solved by Fateev and Zamolodchikov [6]. The exact ground state energy for this last family of hamiltonians is also presented. © 1986. Department of Mathematics The Faculties Australian National University, Canberra, ACT 2600 Departamento de Física Universidade Estadual Paulista, Julio de Mesquita Filho, 13500 Rio Claro, SP Departamento de Física Universidade Estadual Paulista, Julio de Mesquita Filho, 13500 Rio Claro, SP