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arXiv · 1611.09442

Threshold corrections in heterotic flux compactifications

Carlo Angelantonj·Dan Israel·Matthieu Sarkis
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Abstract

We compute the one-loop threshold corrections to the gauge and gravitational couplings for a large class of N=2 non-K\"ahler heterotic compactifications with three-form flux, consisting in principal two-torus bundles over K3 surfaces. We obtain the results as sums of BPS-states contributions, depending on the topological data of the bundle. We analyse also the worldsheet non-perturbative corrections coming from instantons wrapping the torus fiber, that are mapped under S-duality to D-instanton corrections in type I flux compactifications.

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Carlo Angelantonj, Dan Israel, Matthieu Sarkis. 2016-11-29. Threshold corrections in heterotic flux compactifications. https://doi.org/10.1007/jhep08(2017)032

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