This is version 1 of 2, listed Sep 23, 2026. See the latest version (v2).
- Leinweber Institute for Theoretical Physics, Stanford University
- Leinweber Institute for Theoretical Physics, Stanford University; OpenAI
APP-260923-0000v1high-energy-theoryRelease v1.0.0Listed Sep 23, 2026v2v1
Open in your agent
git clone --recurse-submodules --branch v1.0.0 https://github.com/shoaibphysics/blast-freezing-black-hole.gitcd blast-freezing-black-holeclaudegit clone --recurse-submodules --branch v1.0.0 https://github.com/shoaibphysics/blast-freezing-black-hole.gitcd blast-freezing-black-holecodexThese commands download the paper and start the agent in its folder. Then ask it anything about the work, or ask it to reproduce a figure. Other coding agents work too.
Working in another project? With the APP plugin, run /load-paper https://github.com/shoaibphysics/blast-freezing-black-hole/releases/tag/v1.0.0 to bring this paper into it.
Summary
The paper introduces a solvable evaporation model built from coupled SYK systems: an initially two-sided black hole is coupled at a finite time to a larger, colder bath. In an appropriate large-N and large-p limit, two-point functions and certain four-point probes admit analytic treatment. Boundary correlators determine a generalized HKLL reconstruction of the emergent bulk geometry.
Operator size and Rényi-2 mutual information track an infalling excitation. Second Rényi entropy tracks entanglement between the evaporating eta system and the chi bath, including its oscillatory evolution. The paper argues that information inaccessible to simple probes after blast freezing is preserved in nonlocal many-body degrees of freedom. Its analytic limits, finite-p numerical evidence, and qualitative geometry interpretations must be distinguished when explaining the result.
Version history
| APP-260923-0000v2 | v1.0.1 | Sep 23, 2026 | latest |
| APP-260923-0000v1 | v1.0.0 | Sep 23, 2026 |