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Calendar of Physics Talks Vienna
| Study of protected BPS correlators of heavy operators in $\mathcal{N}=4$ SYM via complex matrix models and their holographic duals |
| Speaker: | Prokopii Anempodistov (ENS Paris) |
| Abstract: | We propose and study a family of complex matrix models computing the protected two- and three-point correlation functions in \mathcal{N}=4 SYM. Our description allows us to directly relate the eigenvalue density of the matrix model for ``Huge" operators with \Delta \sim N^2 to the shape of droplets in the dual Lin-Lunin-Maldacena (LLM) geometry. We demonstrate how to determine the eigenvalue distribution for various choices of operators such as those of exponential, character, or coherent state type, which then allows us to efficiently compute one-point functions of light chiral primaries in generic LLM backgrounds. We provide a large N formalism for one-point functions of ``Giant" probes, such as operators dual to giant graviton branes in LLM backgrounds, and explicitly apply it for particular backgrounds. We also explicitly compute the correlator of three huge half-BPS operators of exp |
| Date: | Tue, 02.06.2026 |
| Time: | 14:00 |
| Duration: | 60 min |
| Location: | Erwin-Schroedinger-HS, Boltzmanngasse 5, 1090 Wien, 5.Stock |
| Contact: | S. Fredenhagen, M. Sperling |
| The Regge Limit of Gravity (on Zoom) |
| Speaker: | Ira Rothstein (Carnegie Mellon University, University of Edinburgh) |
| Abstract: | The Regge limit of gravity is in some ways more complicated than the case of QCD because the Glauber mode become strongly coupled. On the other, it is simpler than QCD as this limit also leads to a clean semi-classical limit. As such, we know that, despite the strongly coupled nature of the problem, we should be able to maintain calculational control. After all, we know how to calculate plentary scattering in this limit. Despite this fact, there are various open puzzles regarding this limit, and in this talk I will show how the EFT of gravity in this limit can address these issues. |
| Date: | Tue, 02.06.2026 |
| Time: | 16:15 |
| Duration: | 60 min |
| Location: | Erwin-Schroedinger-HS, Boltzmanngasse 5, 1090 Wien, 5.Stock |
| Contact: | A. Hoang, M. Procura, J. Pradler |
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