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  1. Pubblicazioni

Surface defects from fractional branes. Part I

Articolo
Data di Pubblicazione:
2020
Abstract:
We show that the Gukov-Witten monodromy defects of supersymmetric Yang-Mills theory can be realized in perturbative string theory by considering an orbifold background of the Kanno-Tachikawa type and placing stacks of fractional D3-branes whose world-volume partially extends along the orbifold directions. In particular, we show that turning on a constant background value for some scalar fields in the closed string twisted sectors induces a non-trivial profile for the gauge field and one of the complex scalars of the world-volume theory, and that this profile exactly matches the singular behavior that one expects for a Gukov-Witten surface defect in the N = 4 super Yang-Mills theory. To keep the presentation as simple as possible, in this work we restrict our analysis to surface defects corresponding to a ℤ2 orbifold and defer the study of the most general case to a companion paper.
Tipologia CRIS:
03A-Articolo su Rivista
Keywords:
D-branes; Duality in Gauge Field Theories; Extended Supersymmetry; Nonperturbative Effects
Elenco autori:
Ashok S.K.; Billo' M.; Frau M.; Lerda A.; Mahato S.
Autori di Ateneo:
BILLO' Marco
FRAU Marialuisa
Link alla scheda completa:
https://iris.unito.it/handle/2318/1765031
Link al Full Text:
https://iris.unito.it/retrieve/handle/2318/1765031/688193/Ashok2020_Article_SurfaceDefectsFromFractionalBr-1.pdf
Pubblicato in:
JOURNAL OF HIGH ENERGY PHYSICS
Journal
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