Boundary renormalization group flows in coset conformal field theories

  title={Boundary renormalization group flows in coset conformal field theories},
  author={Stefan Fredenhagen and Volker Schomerus},
  journal={Physical Review D},
We propose a new rule for boundary renormalization group flows in fixed-point free coset models. Our proposal generalizes the ``absorption of boundary spin'' principle formulated by Affleck and Ludwig to a large class of perturbations in boundary conformal field theories. We illustrate the rule in the case of unitary minimal models. 

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