Abstract
Non-trivial gravitational saddles have played a key role in the island proposal for the black hole information paradox. It is worth asking if non-trivial saddles exist in microscopic descriptions of black holes. We show this to be the case for 1/8 BPS black holes in \( \mathcal{N} \) = 8 String Theory in a duality frame, where all charges are Ramond Ramond. The saddles are in the Coulomb branch, where they describe marginally stable bound states of the constituent branes, and correspond to vacua of the BFSS model. The non-perturbative suppression scale is determined by the binding energy. We comment on possible relevance of our results for develo** string theoretic parallels of astrophysical black holes.
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Acknowledgments
We would like to thank Ashoke Sen for his comments. This work was supported by Banaras Hindu University.
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Kumar, P., Mondal, S. Non-trivial saddles in microscopic description of black holes. J. High Energ. Phys. 2024, 123 (2024). https://doi.org/10.1007/JHEP07(2024)123
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DOI: https://doi.org/10.1007/JHEP07(2024)123