| D-Terms from Generalized NS-NS Fluxes in Type II (2007) | |||||||||
Abstract | |||||||||
| Orientifolds of type II string theory admit a certain set of generalized NS-NS fluxes, including not only the three-form field strength H, but also metric and non-geometric fluxes, which are related to H by T-duality. We describe in general how these fluxes appear as parameters of an effective N=1 supergravity theory in four dimensions, and in particular how certain generalized NS-NS fluxes can act as charges for R-R axions, leading to D-term contributions to the effective scalar potential. We illustrate these phenomena in type IIB with the example of a certain orientifold of T^6/Z_4.. Comment: 31+1 pages, uses utarticle.cls; v2: references added | |||||||||
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