Mathematical and Theoretical Physics Seminar: Jinwei Chu (U Chicago), "A new approach to small black holes in string theory"
- Event Type
- Seminar/Symposium
- Sponsor
- Department of Physics
- Location
- Loomis 464
- Date
- Oct 23, 2025 1:00 - 2:00 pm
- Speaker
- Jinwei Chu
- Contact
- Thierry Ramais
- ramais@illinois.edu
- Phone
- 217-300-2044
- Views
- 29
Abstract: In this talk, I will introduce a new approach for studying $d+1$ dimensional Euclidean Schwarzschild black holes with Hawking temperature near the Hagedorn temperature, as well as the Horowitz-Polchinski (HP) solutions. The worldsheet theory that describes some of these backgrounds is strongly coupled. We use its underlying affine $SU(2)_L\times SU(2)_R$ symmetry to continue to weak coupling, by varying the level of the current algebra from the small value relevant for black holes and HP solutions to a large value. In this limit, the dynamics can be captured by a solvable effective field theory, closely related to previous work on the non-abelian Thirring model. I will also discuss several interesting properties of the resulting solutions.