A note on black hole entropy and wormhole instabilities

Abstract We discuss recent approaches to the computation of black hole entropies through semiclassical estimates of appropriate state overlaps, saturated by Euclidean wormhole configurations. We notice that the relevant saddle-point manifolds may exhibit instabilities, thereby compromising the inter...

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Bibliographic Details
Main Authors: J. L. F. Barbón, E. Velasco-Aja
Format: Article
Language:English
Published: SpringerOpen 2025-08-01
Series:Journal of High Energy Physics
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Online Access:https://doi.org/10.1007/JHEP08(2025)103
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