MS Seminar (Mathematics - String Theory)

Speaker: Satoshi Yamaguchi (Osaka U)
Title: The ϵ-expansion of the codimension two twist defect from conformal field theory
Date: Tue, Nov 22, 2016, 15:30 - 17:00
Place: Seminar Room B
Related File: 1760.pdf
Abstract: We consider a codimension two defect called "twist defect." We apply the framework of Rychkov-Tan to the twist defect at the Wilson-Fisher fixed point in the (4−ϵ -dimensional O(N) theory. We obtain the scaling dimensions of the operators on the defect up to the lowest nontrivial order in the ϵ-expansion. These results agree with the results by the Feynman diagrammatic calculation. We also study the twist defect in the large N limit.