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Bibliographic Details
Main Authors: Barbon, J. L. F., Velasco-Aja, E.
Format: Preprint
Published: 2025
Subjects:
Online Access:https://arxiv.org/abs/2502.00769
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Table of Contents:
  • 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 interpretation of the Euclidean path integral as a tool for computing positive-definite inner products. We show that a proper treatment using a microcanonical formulation effectively addresses the puzzles posed by these instabilities.