Dimensional Reduction for D3-brane Moduli
Sep 19, 2016
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Abstract: (arXiv)
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.Note:
- 37 pp + appendices; v2. typographical fixes, clarified section 4.2.3; v3. minor edits, added clarifications
- Flux compactifications
- D-branes
- compactification: Calabi-Yau
- moduli: stability
- D-brane: 3
- dimensional reduction
- string model: Type IIB
- self-duality
- moduli space
- energy: low
References(35)
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