Bootstrapping line defects with O(2) global symmetry
| Autor: | Aleix Gimenez-Grau, Edoardo Lauria, Pedro Liendo, Philine van Vliet |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: |
field theory: conformal
High Energy Physics - Theory Nuclear and High Energy Physics defect Strongly Correlated Electrons (cond-mat.str-el) monodromy global [symmetry] FOS: Physical sciences magnetic field symmetry: global symmetry global Scale and Conformal Symmetries O(2) Condensed Matter - Strongly Correlated Electrons High Energy Physics - Theory (hep-th) Boundary Quantum Field Theory ddc:530 Renormalization Group correlation function field theory conformal bootstrap capture numerical calculations conformal [field theory] |
| Zdroj: | Journal of High Energy Physics Journal of high energy physics 11(11), 18 (2022). doi:10.1007/JHEP11(2022)018 |
| DOI: | 10.1007/JHEP11(2022)018 |
| Popis: | Journal of high energy physics 11(11), 18 (2022). doi:10.1007/JHEP11(2022)018 We use the numerical bootstrap to study conformal line defects with $O(2)$ global symmetry. Our results are very general and capture in particular line defects originating from bulk CFTs with a global symmetry, which can either be preserved or partially broken by the presence of the defect. We begin with an agnostic approach and perform a systematic bootstrap study of correlation functions between two canonical operators on the defect: the displacement and the tilt. We then focus on two interesting theories: a monodromy line defect and a localized magnetic field line defect. To this end, we combine the numerical bootstrap with the $\varepsilon$-expansion, where we complement existing results in the literature with additional calculations. For the monodromy defect our numerical results are consistent with expectations, with known analytic solutions sitting inside our numerical bounds. For the localized magnetic field line defect our plots show a series of intriguing cusps which we explore. Published by SISSA, [Trieste] |
| Databáze: | OpenAIRE |
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