Holography for people with no time

Abstract

We study the gravitational description of extremal supersymmetric black holes. We point out that the $Ad{S}_2$ near horizon geometry can be used to compute interesting observables, such as correlation functions of operators. In this limit, the Hamiltonian is zero and correlation functions are time independent. We discuss some possible implications for the gravity description of black hole microstates. We also compare with numerical results in a supersymmetric version of SYK. These results can also be interpreted as providing a construction of wormholes joining two extremal black holes. This is the short version of a longer and more technical companion paper arXiv:2207.00408.

21 pages, 9 figures; v2: slightly expanded discussion, v3: minor improvements

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Cited by in corpus (12)

• Solvable Models of Quantum Black Holes: A Review on Jackiw-Teitelboim Gravity
• Aspects of AdS${}_2$ Quantum Gravity and the Karch-Randall Braneworld
• BPS Chaos
• dS${}_2$ Supergravity
• Hartle-Hawking state and its factorization in 3d gravity
• The complex Liouville string: worldsheet boundaries and non-perturbative effects
• Tunneling to Holographic Traversable Wormholes
• Les Houches lectures on two-dimensional gravity and holography
• Gravitational wavefunctions in JT supergravity
• Approximate Quantum Codes From Long Wormholes
• Counting atypical black hole microstates from entanglement wedges
• Random Circuits in the Black Hole Interior