# 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…

## 15 Citations

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## References

SHOWING 1-10 OF 60 REFERENCES

Black holes and random matrices

- Physics
- 2016

A bstractWe argue that the late time behavior of horizon fluctuations in large anti-de Sitter (AdS) black holes is governed by the random matrix dynamics characteristic of quantum chaotic systems.…

A theory of reparameterizations for AdS3 gravity

- PhysicsJournal of High Energy Physics
- 2019

A bstractWe rewrite the Chern-Simons description of pure gravity on global AdS3 and on Euclidean BTZ black holes as a quantum field theory on the AdS boundary. The resulting theory is (two copies of)…

Reparametrization modes, shadow operators, and quantum chaos in higher-dimensional CFTs

- PhysicsJournal of High Energy Physics
- 2019

Abstract
We study two novel approaches to efficiently encoding universal constraints imposed by conformal symmetry, and describe applications to quantum chaos in higher dimensional CFTs. The first…

Conformal symmetry and its breaking in two dimensional Nearly Anti-de-Sitter space

- Physics
- 2016

We study a two dimensional dilaton gravity system, recently examined by Almheiri and Polchinski, which describes near extremal black holes, or more generally, nearly $AdS_2$ spacetimes. The…

A semiclassical ramp in SYK and in gravity

- Physics
- 2018

In finite entropy systems, real-time partition functions do not decay to zero at late time. Instead, assuming random matrix universality, suitable averages exhibit a growing "ramp" and "plateau"…

The double cone geometry is stable to brane nucleation

- PhysicsJournal of High Energy Physics
- 2021

Abstract
In gauge/gravity duality, the bulk double cone geometry has been argued to account for a key feature of the spectral form factor known as the ramp. This feature is deeply associated with…

The Large-N Limit of Superconformal Field Theories and Supergravity

- Physics, Mathematics
- 1997

We show that the large-N limits of certainconformal field theories in various dimensions includein their Hilbert space a sector describing supergravityon the product of anti-de Sitter spacetimes,…

One-loop quantum gravity from a worldline viewpoint

- Physics
- 2013

A bstractWe develop a worldline approach to quantum gravity in D = 4. Using the background field method we consider the covariantly gauge fixed Einstein-Hilbert action with cosmological constant, and…

Black hole explosions?

- PhysicsNature
- 1974

QUANTUM gravitational effects are usually ignored in calculations of the formation and evolution of black holes. The justification for this is that the radius of curvature of space-time outside the…