# Black Holes from Supercharge Cohomology

- Institution: CERN
- Department: Conferences, Workshops & Schools
- Speaker: Chi-Ming Chang
- Year: 2024
- Language: English
- Source: [CERN](https://videos.cern.ch/record/3008864)
- Licence: [CERN](http://copyright.web.cern.ch)
- Who can watch: Teens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

In this talk, I will introduce supercharge cohomology, which is semi-protected by supersymmetry and reveals much richer information beyond state counting. I will classify supercharge cohomologies in holographic conformal field theories into two categories: monotone (graviton) and fortuitous (black hole). Focusing on N=4 super-Yang-Mills theory, I will present explicit constructions of monotone and fortuitous cohomology classes and discuss their conjectural bulk duals as smooth horizonless geometries and black holes. Finally, I will examine the spectrum of near-BPS operators and near-BPS black holes..

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## Lectures

1. [Black Holes from Supercharge Cohomology](https://invisiblenetwork.ai/learn/cern/3008864/15b72bf0cb3a), 28 min (CERN's player)