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arXiv · 1210.1221

D-brane instantons on non-Spin cycles

Per Berglund·Iñaki García-Etxebarria
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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.

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Per Berglund, Iñaki García-Etxebarria. 2012-12-13. D-brane instantons on non-Spin cycles. https://doi.org/10.1007/jhep01(2013)056

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