English

Anomalous Dimensions in the WF O($N$) Model with a Monodromy Line Defect

High Energy Physics - Theory 2018-03-15 v3

Abstract

Implications of inserting a conformal, monodromy line defect in three dimensional O(NN) models are studied. We consider then the WF O(NN) model, and study the two-point Green's function for bulk-local fields found from both the bulk-defect expansion and Feynman diagrams. This yields the anomalous dimensions for bulk- and defect-local primaries as well as one of the OPE coefficients as ϵ\epsilon-expansions to the first loop order. As a check on our results, we study the (ϕk)2ϕj(\phi^k)^2{\phi}^j operator both using the bulk-defect expansion as well as the equations of motion.

Keywords

Cite

@article{arxiv.1706.02414,
  title  = {Anomalous Dimensions in the WF O($N$) Model with a Monodromy Line Defect},
  author = {Alexander Söderberg},
  journal= {arXiv preprint arXiv:1706.02414},
  year   = {2018}
}

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21 pages