0 v 2 1 N ov 1 99 9 DTP / 99 / 33 Calculating the infrared central charges for perturbed minimal models : improving the RG perturbation
نویسنده
چکیده
We illustrate a method for improving Renormalisation Group improved perturbation theory by calculating the infra-red central charge of a perturbed conformal field theory. The additional input is a dispersion relation that exploits analyticity of the energy-momentum tensor correlator.
منابع مشابه
/ 99 05 14 0 v 1 1 9 M ay 1 99 9 DTP / 99 / 33 Calculating the infrared central charges for perturbed minimal models : improving the RG perturbation
We illustrate a method for improving Renormalisation Group improved perturbation theory by calculating the infra-red 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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