Calculating the infrared central charges for perturbed minimal models: improving the RG perturbation
classification
✦ hep-th
cond-mat.stat-mech
keywords
calculatingcentralimprovinginfraredperturbationperturbedtheoryadditional
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We illustrate a method for improving Renormalisation Group improved perturbation theory by calculating the infrared central charge of a perturbed conformal field theory. The additional input is a dispersion relation that exploits analyticity of the energy-momentum tensor correlator.
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