D-brane instantons on non-Spin cycles
arXiv:1210.1221 · doi:10.1007/JHEP01(2013)056
Abstract
We show that non-Spin cycles in type IIB Calabi-Yau orientifold compactifications with vanishing B field naturally support orientifold-invariant D-brane instantons. These instantons, associated to the holomorphic cotangent bundle of the non-Spin cycle, can lead to non-perturbative corrections to the superpotential.
10 pages. v3: version to appear in JHEP
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- Combining Universal and Odd RR Axions for Aligned Natural Inflation
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- F-term Stabilization of Odd Axions in LARGE Volume Scenario
- De Sitter vacua from a D-term generated racetrack potential in hypersurface Calabi-Yau compactifications
- A Database of Calabi-Yau Orientifolds and the Size of D3-Tadpoles