Skip to Main content Skip to Navigation
Journal articles

Enhanced gauge symmetry and winding modes in Double Field Theory

Abstract : We provide an explicit example of how the string winding modes can be incorporated in double field theory. Our guiding case is the closed bosonic string compactified on a circle of radius close to the self-dual point, where some modes with non-zero winding or discrete momentum number become massless and enhance the $U(1) \times U(1)$ symmetry to $SU(2) \times SU(2)$. We compute three-point string scattering amplitudes of massless and slightly massive states, and extract the corresponding effective low energy gauge field theory. The enhanced gauge symmetry at the self-dual point and the Higgs-like mechanism arising when changing the compactification radius are examined in detail. The extra massless fields associated to the enhancement are incorporated into a generalized frame with $\frac{O(d+3,d+3)}{O(d+3)\times O(d+3)}$ structure, where $d$ is the number of non-compact dimensions. We devise a consistent double field theory action that reproduces the low energy string effective action with enhanced gauge symmetry. The construction requires a truly non-geometric frame which explicitly depends on both the compact coordinate along the circle and its dual.
Document type :
Journal articles
Complete list of metadatas

Cited literature [42 references]  Display  Hide  Download

https://hal-cea.archives-ouvertes.fr/cea-01295157
Contributor : Emmanuelle de Laborderie <>
Submitted on : Wednesday, March 30, 2016 - 2:37:29 PM
Last modification on : Monday, May 11, 2020 - 3:36:02 PM
Long-term archiving on: : Monday, November 14, 2016 - 9:08:17 AM

File

1510.07644v2.pdf
Files produced by the author(s)

Identifiers

Citation

G. Aldazabal, M. Graña, S. Iguri, M. Mayo, C. Nuñez, et al.. Enhanced gauge symmetry and winding modes in Double Field Theory. Journal of High Energy Physics, Springer Verlag (Germany), 2016, ⟨10.1007/JHEP03(2016)093⟩. ⟨cea-01295157⟩

Share

Metrics

Record views

134

Files downloads

329