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Calendar of Physics Talks Vienna
| Translations, Librations, Rotations and Vibrations of Levitated Nanoparticles |
| Speaker: | Lukas Novotny (ETH Zurich) |
| Abstract: | We use levitated nanoparticles to explore the quantum-classical boundary and to investigate
the limits of measurement precision. To this end, we utilize the many degrees of freedom of these nanoparticles, including translations, librations, rotations and vibrations. I will report on our recent progress in controlling these modes and discuss potential applications in sensing and metrology. |
| Date: | Mon, 10.02.2025 |
| Time: | 16:00 |
| Duration: | 45 min |
| Location: | Sem.R. DB gelb 10, Freihaus Building, Yellow Area, 10th floor |
| Contact: | carlos.gonzalez-ballestero@tuwien.ac.at |
| Dynamics of heavy quarks in strongly coupled N=4 SYM plasma |
| Speaker: | Bruno Scheihing-Hitschfeld (Santa Barbara, KITP) |
| Abstract: | In this talk, I will motivate and describe the calculation of the probability for a heavy quark propagating through strongly coupled N=4 SYM plasma at a finite temperature to change its momentum by a given amount. The calculation proceeds through the AdS/CFT correspondence. We obtain an explicit, analytic result for the full probability distribution of the momentum imparted on a heavy quark after propagating through the plasma for a time t at leading order in the strong coupling expansion. We derive an evolution equation for the phase space distribution of heavy quarks that generalizes the Fokker-Planck equation and encodes the effect of non-Gaussian features of the momentum transfer, with which we show that heavy quarks can reach kinetic equilibrium with the plasma. Finally, I will discuss how our results provide further insight into the physics of heavy quarks in heavy-ion collisions. |
| Date: | Thu, 13.02.2025 |
| Time: | 14:00 |
| Duration: | 60 min |
| Location: | TU Wien, Wiedner Hauptstr. 8-10, yellow area, 10th floor, seminar room DB10E11 |
| Contact: | A. Rebhan |
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