Analytic bootstrap for conformal defects
Davide Bonomi
City University London
Jeudi 07/12/2023, 14:00-15:30
Salle Claude Itzykson, Bât. 774, Orme des Merisiers
I will discuss line defects in the O(N) model at the Wilson-Fisher fixed point from the point of view of the analytic conformal bootstrap. These defects represent magnetic impurities in condensed matter systems, such as quantum antiferromagnets. After reviewing a recently derived conformal dispersion relation, I will apply it to compute the two-point functions of bulk operators in the presence of a localized magnetic field or a spin impurity in the critical O(N) model. Finally, I will discuss the defect and bulk CFT data that one can extract from it.
Contact : Ioannis TSIARES


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