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The thermodynamic Bethe ansatz for deformed W$A_{N-1}$ conformal field theories

Marcio J. Martins
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Abstract

We propose and investigate the thermodynamic Bethe ansatz equations for the minimal $W_p^N$ models~(associated with the $A_{N-1}$ Lie algebra) perturbed by the least~($Z_N$ invariant) primary field $Φ_N$. Our results reproduce the expected ultraviolet and infrared regimes. In particular for the positive sign of the perturbation our equations describe the behaviour of the ground state flowing from the $W_p^N$ model to the next $W_{p-1}^N$ fixed point.

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Marcio J. Martins. 1992-01-16. The thermodynamic Bethe ansatz for deformed W$A_{N-1}$ conformal field theories. https://doi.org/10.1016/0370-2693(92)90750-x

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