Dimensional reduction for D3-brane moduli
Abstract
Warped string compactifications are central to many attempts to stabilize moduli and connect string theory with cosmology and particle phenomenology. We present a first-principles derivation of the low-energy 4D effective theory from dimensional reduction of a D3-brane in a warped Calabi-Yau compactification of type IIB string theory with imaginary self-dual 3-form flux, including effects of D3-brane motion beyond the probe approximation, and find the metric on the moduli space of brane positions, the universal volume modulus, and axions descending from the 4-form potential. As D3-branes may be considered as carrying either electric or magnetic charges for the self-dual 5-form field strength, we present calculations in both duality frames. Our results are consistent with, but extend significantly, earlier results on the low-energy effective theory arising from D3-branes in string compactifications.
- Publication:
-
Journal of High Energy Physics
- Pub Date:
- December 2016
- DOI:
- 10.1007/JHEP12(2016)139
- arXiv:
- arXiv:1609.05904
- Bibcode:
- 2016JHEP...12..139C
- Keywords:
-
- Flux compactifications;
- D-branes;
- High Energy Physics - Theory
- E-Print:
- 37 pp + appendices