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27 January 2021
 
  » arxiv » 1903.5222

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A Lorentzian inversion formula for defect CFT
Pedro Liendo ; Yannick Linke ; Volker Schomerus ;
Date 12 Mar 2019
AbstractWe present a Lorentzian inversion formula valid for any defect CFT that extracts the bulk channel CFT data as an analytic function of the spin variable. This result complements the already obtained inversion formula for the corresponding defect channel, and makes it now possible to implement the analytic bootstrap program for defect CFT, by going back and forth between both channels. A crucial role in our derivation is played by the Calogero-Sutherland description of defect blocks which we review. As first applications we obtain the large-spin limit of bulk CFT data necessary to reproduce the defect identity, and also calculate the bulk data of the twist defect of the $3d$ Ising model to first order in the $epsilon$-expansion.
Source arXiv, 1903.5222
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