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Calendar of Physics Talks Vienna
| From baby universes to black holes in 2d flat space gravity |
| Speaker: | Charles Marteau (UBC) |
| Abstract: | In this talk I will discuss a simple model of 2d flat gravity that derives from the CGHS model. Its simplicity allows one to compute exactly the Euclidean gravitational path integral. When one allows for more than one thermal boundary, the model is dual to an ensemble of theories, I will discuss this ensemble in detail. The ensemble description is equivalent to a description in terms of baby universe Hilbert space in which one can build the so-called alpha-states, states in which the theory is now dual to only one theory. I will end the presentation by describing how this 2d model appears as a universal sector in the near-horizon dynamics of non-extremal black holes. |
| Date: | Tue, 11.05.2021 |
| Time: | 14:00 |
| Duration: | 60 min |
| Location: | https://moodle.univie.ac.at/mod/bigbluebuttonbn/guestlink.php?gid=x8o6ILSKJuC9 |
| Contact: | Céline Zwikel |
| Hadronic contributions to the muon g-2 in a dispersive approach |
| Speaker: | Bai-Long Hoid (AEC, University of Bern) |
| Abstract: | Shortly after the first released results from the muon g-2 experiment at Fermilab solidifying the tension with the theory prediction,
we take this occasion to discuss the dispersive analysis of some hadronic vacuum polarisation and hadronic light-by-light scattering contributions to the anomalous magnetic moment of the muon. |
| Date: | Tue, 11.05.2021 |
| Time: | 16:00 |
| Duration: | 60 min |
| Location: | https://univienna.zoom.us/j/93104933847?pwd=N0FrL0E1UHlkQWRhQTlQODVkZ3kvUT09 Meeting ID: 931 0493 3847 Passcode: 674625 |
| Contact: | A. Hoang, P. Stoffer |
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