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arXiv · 0711.0102

Perturbed Defects and T-Systems in Conformal Field Theory

Ingo Runkel
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Abstract

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 to 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.

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Ingo Runkel. 2008-02-18. Perturbed Defects and T-Systems in Conformal Field Theory. https://doi.org/10.1088/1751-8113%2F41%2F10%2F105401

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