Abstract
We analyse type IIA Calabi-Yau orientifolds with background fluxes, taking into account the effect of perturbative α′-corrections. In particular, we consider the α′ corrections that modify the metrics in the Kähler sector of the compactification. As it has been argued in the literature, including such α′-corrections allows to construct the mirror duals of type IIB Calabi-Yau flux compactifications, in which the effect of flux backreaction is under control. We compute the α′-corrected scalar potential generated by the presence of RR and NS fluxes, and reformulate it as a bilinear of the flux-axion polynomials invariant under the discrete shift symmetries of the compactification. The use of such invariants allows to express in a compact and simple manner the conditions for Minkowski and AdS flux vacua, and to extract the effect of α′-corrections on them.
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Escobar, D., Marchesano, F. & Staessens, W. Type IIA flux vacua and α′-corrections. J. High Energ. Phys. 2019, 129 (2019). https://doi.org/10.1007/JHEP06(2019)129
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DOI: https://doi.org/10.1007/JHEP06(2019)129