Superradiance Exclusions in the Landscape of Type IIB String Theory
| Autor: | Mehta, Viraf M., Demirtas, Mehmet, Long, Cody, Marsh, David J. E., McAllister, Liam, Stott, Matthew J. |
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| Rok vydání: | 2020 |
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| Druh dokumentu: | Working Paper |
| Popis: | We obtain constraints from black hole superradiance in an ensemble of compactifications of type IIB string theory. The constraints require knowing only the axion masses and self-interactions, and are insensitive to the cosmological model. We study more than $2 \cdot 10^5$ Calabi-Yau manifolds with Hodge numbers $1\leq h^{1,1}\leq 491$ and compute the axion spectrum at two reference points in moduli space for each geometry. Our computation of the classical theory is explicit, while for the instanton-generated axion potential we use a conservative model. The measured properties of astrophysical black holes exclude parts of our dataset. At the point in moduli space corresponding to the tip of the stretched K\"{a}hler cone, we exclude $\approx 50\%$ of manifolds in our sample at 95% C.L., while further inside the K\"{a}hler cone, at an extremal point for realising the Standard Model, we exclude a maximum of $\approx 7\%$ of manifolds at $h^{1,1}=11$, falling to nearly zero by $h^{1,1}=100$. Comment: 6 pages, 3 figures. v2: expanded dataset; minor corrections and clarifications |
| Databáze: | arXiv |
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