Nonlinear Integral Equation and Finite Volume Spectrum of Minimal Models Perturbed by $Φ_{(1,3)}$

Details Nonlinear Integral Equation and Finite Volume Spectrum of Minimal Models Perturbed by $Φ_{(1,3)}$ Nonlinear Integral Equation and Finite Volume Spectrum of Minimal Models Perturbed by $Φ_{(1,3)}$

1999-09-07

arxiv.org/abs/hep-th/9909031v2

Nucl.Phys. B570 (2000) 615-643

Physics

High Energy Physics

High Energy Physics - Theory

31 pages, latex (LyX generated). One reference and few comments added

Scientific paper

10.1016/S0550-3213(99)00771-3

We describe an extension of the nonlinear integral equation (NLIE) method to Virasoro minimal models perturbed by the relevant operator $\Phi_{(1,3)$. Along the way, we also complete our previous studies of the finite volume spectrum of sine-Gordon theory by considering the attractive regime and more specifically, breather states. For the minimal models, we examine the states with zero topological charge in detail, and give numerical comparison to TBA and TCS results. We think that the evidence presented strongly supports the validity of the NLIE description of perturbed minimal models.

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