We propose a thermodynamic Bethe ansatz (TBA) for Gk⊗Gl Gk+l conformal coset models (G any simply-laced Lie algebra) perturbed by their operator ø1,1,Adj. An interesting adjancency structure appears and can be depicted in a sort of "product" of Dynkin diagrams of G and Ak+l-1. UV and IR limits are computed and reproduce the expected values for the central charges. For k→∞, l fixed we obtain the TBA of the Gl WZW model perturbed by JaJa, and for k,l→∞, k-l fixed, that of the principal chiral model with WZ term at level k-l. © 1992.
Ravanini F. (1992). Thermodynamic Bethe ansatz for Gk⊗Gl Gk+l coset models perturbed by their ø1,1,Adj operator. PHYSICS LETTERS. SECTION B, 282(1-2), 73-79 [10.1016/0370-2693(92)90481-I].
Thermodynamic Bethe ansatz for Gk⊗Gl Gk+l coset models perturbed by their ø1,1,Adj operator
Ravanini F.
1992
Abstract
We propose a thermodynamic Bethe ansatz (TBA) for Gk⊗Gl Gk+l conformal coset models (G any simply-laced Lie algebra) perturbed by their operator ø1,1,Adj. An interesting adjancency structure appears and can be depicted in a sort of "product" of Dynkin diagrams of G and Ak+l-1. UV and IR limits are computed and reproduce the expected values for the central charges. For k→∞, l fixed we obtain the TBA of the Gl WZW model perturbed by JaJa, and for k,l→∞, k-l fixed, that of the principal chiral model with WZ term at level k-l. © 1992.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
