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Calendar of Physics Talks Vienna
| Speaker: | Qianyu HAO (University of Geneva) |
| Abstract: | In this talk, I will discuss how quasinormal modes of certain black holes can be studied utilising the two-dimensional conformal field theory (2D CFT) and their connection to four-dimensional N=2 supersymmetric field theories. This serves as an example of the interesting interplay between black hole physics, 2D CFTs, and 4D N=2 theories, where insights from one domain illuminate the others. We will review the correspondences and the dictionaries. I will show how to solve the connection problem of second-order linear ODEs of Fuchsian type coming from quiver gauge theories or corresponding black hole perturbation theories in terms of the crossing symmetry of the 2d CFT. This is a generalization of the Heun case studied in Bonelli-Iossa-Lichtig-Tanzini. In particular, the connection coefficients are expressed in terms of a special function defined in 4D N=2 theories, which is the... |
| Date: | Tue, 27.05.2025 |
| Time: | 14:00 |
| Duration: | 60 min |
| Location: | Erwin-Schroedinger Lecture Hall, 1090 Vienna, Boltzmanngasse 5, 5th floor |
| Contact: | S. Fredenhagen, M. Sperling |
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