# Computing bulk microstates

- Institution: CERN
- Department: TH String Theory Seminar
- Speaker: Ji Hoon Lee
- Year: 2023
- Language: English
- Subjects: Computer science
- Source: [CERN](https://videos.cern.ch/record/3016645)
- Licence: [CERN](http://copyright.web.cern.ch)
- Who can watch: Tweens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

A central question in AdS/CFT is how the string degrees of freedom are organized in the dual gauge theory. In my talk, I present an exact formula that relates the BPS sectors of U(N) gauge theories and their string duals. The formula expresses the finite N superconformal index of a U(N) gauge theory as a sum over stacks of bulk giant graviton branes. I explain how to holographically construct the indices of bulk string/brane configurations by analyzing the modifications of determinant operators in gauge theory. Finally, I discuss implications for black holes and the bulk BPS Hilbert space. Based on 2109.02545 and 2204.09286

## Lectures

1. [Computing bulk microstates](https://invisiblenetwork.ai/learn/cern/3016645/e0863f1be481), 1 h 25 min (CERN's player)