Consistent Compactification of Double Field Theory on Non-geometric Flux Backgrounds
Jan 20, 2014
45 pages
Published in:
- JHEP 05 (2014) 085
- Published: 2014
e-Print:
- 1401.5068 [hep-th]
Report number:
- LMU-ASC-85-13,
- MPP-2013-315
View in:
Citations per year
Abstract: (arXiv)
In this paper, we construct non-trivial solutions to the -dimensional field equations of Double Field Theory (DFT) by using a consistent Scherk-Schwarz ansatz. The ansatz identifies internal directions with a twist which is directly connected to the covariant fluxes . It exhibits linear independent generalized Killing vectors and gives rise to a gauged supergravity in dimensions. We analyze the covariant fluxes and the corresponding gauged supergravity with a Minkowski vacuum. We calculate fluctuations around such vacua and show how they gives rise to massive scalars field and vectors field with a non-abelian gauge algebra. Because DFT is a background independent theory, these fields should directly correspond the string excitations in the corresponding background. For we perform a complete scan of all allowed covariant fluxes and find two different kinds of backgrounds: the single and the double elliptic case. The later is not T-dual to a geometric background and cannot be transformed to a geometric setting by a field redefinition either. While this background fulfills the strong constraint, it is still consistent with the Killing vectors depending on the coordinates and the winding coordinates, thereby giving a non-geometric patching. This background can therefore not be described in Supergravity or Generalized Geometry.Note:
- 44 pages, 3 tables, references added, typos corrected
- Flux compactifications
- Superstring Vacua
- String Duality
- vector: Killing
- flux: background
- string: excited state
- field theory: vector
- gauge: nonabelian
- algebra: gauge
- field theory: scalar
References(48)
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