Wormholes and black hole microstates in AdS/CFT

@article{Cotler2021WormholesAB,
  title={Wormholes and black hole microstates in AdS/CFT},
  author={Jordan S. Cotler and Kristan Jensen},
  journal={Journal of High Energy Physics},
  year={2021}
}
Abstract It has long been known that the coarse-grained approximation to the black hole density of states can be computed using classical Euclidean gravity. In this work we argue for another entry in the dictionary between Euclidean gravity and black hole physics, namely that Euclidean wormholes describe a coarse-grained approximation to the energy level statistics of black hole microstates. To do so we use the method of constrained instantons to obtain an integral representation of wormhole… 
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