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Gauge symmetry enhancing-breaking from a Double Field Theory perspective

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Title
Gauge symmetry enhancing-breaking from a Double Field Theory perspective
Author(s)
Gerardo Aldazabal; Eduardo Andres; Martin Mayo; J.A. Rosabal
Publication Date
2017-07
Journal
JOURNAL OF HIGH ENERGY PHYSICS, v.2017, no.7, pp.145
Publisher
SPRINGER
Abstract
Gauge symmetry enhancing, at specific points of the compactification space, is a distinguished feature of string theory. In this work we discuss the breaking of such symmetries with tools provided by Double Field Theory (DFT). As a main guiding example we discuss the bosonic string compactified on a circle where, at the self-dual radio the generic U(1)×U(1) gauge symmetry becomes enhanced to SU(2)×SU(2). We show that the enhancing-breaking of the gauge symmetry can be understood through a dependence of gauge structure constants (fluxes in DFT) on moduli. This dependence, in DFT description, is encoded in the generalized tangent frame of the double space. The explicit T-duality invariant formulation provided by DFT proves to be a helpful ingredient. The link with string theory results is discussed and generalizations to generic tori compactifications are addressed. Open Access,(c) The Authors.
URI
https://pr.ibs.re.kr/handle/8788114/4100
DOI
10.1007/JHEP07(2017)045
ISSN
1029-8479
Appears in Collections:
Center for Fundamental Theory(순수물리이론 연구단) > 1. Journal Papers (저널논문)
Files in This Item:
순수물리 Gauge symmetry enhancing-breaking 10.1007_JHEP07(2017)045.pdfDownload

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