Perturbed defects and T-systems in conformal field theory

Name: Work Video:
Duration: 3 min 30 s
Description: Defect lines in conformal field theory can be perturbed by chiral defect fields. If the unperturbed defects satisfy su(2)-type fusion rules, the operators associated with the perturbed defects are shown to obey functional relations known from the study of integrable models as T-systems. The procedure is illustrated for Virasoro minimal models and for Liouville theory.
Ingo Runkel
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