Diagrammatic evaluation of conformal weights in the U_q[SU(2)] symmetric Heisenberg chain

Дата и время публикации : 1995-06-20T15:43:15Z

Авторы публикации и институты :
Matteo Beccaria

Ссылка на журнал-издание: Ссылка на журнал-издание не найдена
Коментарии к cтатье: 11 pages
Первичная категория: cond-mat

Все категории : cond-mat, hep-lat

Краткий обзор статьи: We consider the $U_q[SU(2)]$ symmetric Heisenberg chain when $q=e^{ipi/(m+1)}$ and $m$ is integer. We consider the cases $m=3$ and $m=5$ which correspond to the Ising and 3-state Potts models. We study the finite size scaling (FSS) of the ground states in different quantum spin sectors and restricting to highest weights of type-II representations. We compute the levels by a diagrammatic technique which needs only the commutation relations of the underlying Temperley-Lieb algebra. The results match the FSS predictions which hold for the Bethe levels. (2 PostScript figures (or the corresponding tables) available from the author)

Category: Physics