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Asymptotic curvature divergences and non-gravitational theories
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abstract
We analyse divergences of the scalar curvature $R$ of the vector multiplet moduli space of type IIA string theory compactified on a Calabi--Yau $X$, along infinite-distance large volume limits. Extending previous results, we classify the origin of the divergence along trajectories which implement decompactifications to F-theory on $X$ and/or emergent heterotic string limits. In all cases, the curvature divergence can be traced back to a 4d rigid field theory that decouples from gravity along the limit. This can be quantified via the asymptotic relation $R \sim (\Lambda_{\rm WGC}/\Lambda_{\rm sp})^{2\nu}$, with $\Lambda_{\rm WGC} \equiv g_{\rm rigid} M_{\rm P}$ and $\Lambda_{\rm sp}$ the species scale. In the UV, the 4d rigid field theory becomes a higher-dimensional, strongly-coupled rigid theory that also decouples from gravity. The nature of this UV theory is encoded in the exponent $\nu$, and it either corresponds to a 5d SCFT, 6d SCFT or a Little String Theory.
Forward citations
Cited by 5 Pith papers
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