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Calendar of Physics Talks Vienna
| Phase behavior of complex mixtures: Application to cacio e pepe |
| Speaker: | Fabrizio Olmeda (ISTA) |
| Abstract: | Phase separation has a wide range of applications—including some surprisingly culinary ones. In this talk, I will provide an overview of the state-of-the-art of phase separation in complex mixtures and how to theoretically and numerically characterize phase boundaries and out-of-equilibrium dynamics. To illustrate this, I will focus on a classic Italian dish: Pasta alla Cacio e Pepe, traditionally made with pecorino cheese and black pepper. I will present a systematic exploration of the phase behavior of the sauce, examining its stability at increasing temperatures across various proportions of cheese, water, and starch. |
| Date: | Tue, 11.11.2025 |
| Time: | 12:15 |
| Duration: | 75 min |
| Location: | University of Vienna (UV): Boltzmanngasse 5, 5th floor, Schrödinger Lecture Hall |
| Contact: | Alessandro Manta |
| Gauged linear sigma models and Ricci flat metrics |
| Speaker: | Rikard VON UNGE (Masaryk University Brno) |
| Abstract: | I will describe a new construction of Ricci flat metrics using gauged linear sigma models satisfying the Calabi-Yau condition.
The approach will be introductory using elementary examples to illustrate the main points and to underline the connection between physical and mathematical concepts. |
| Date: | Tue, 11.11.2025 |
| Time: | 14:00 |
| Duration: | 60 min |
| Location: | Erwin-Schroedinger-Lecture Hall, 1090 Vienna, Boltzmanngasse 5, 5th floor |
| Contact: | S. Fredenhagen, M. Sperling |
| Models for heavy-ion collisions and Carroll Hydrodynamics |
| Speaker: | Ashish Shukla (SINP Kolkata, India) |
| Abstract: | The study of quark-gluon plasma (QGP) and its properties is of fundamental significance to the understanding of the strong interactions. Heavy-ion collision experiments have shown that the QGP behaves like a nearly perfect fluid for part of its evolution before eventual hadronization. Using approximate symmetries, such as the boost invariance of the flow along the beam axis, the hydrodynamic behaviour of the QGP can be studied via simple models such as Bjorken and Gubser flow. In this talk, I will present the idea that these simple models are actually realizations of what has come to be known as "Carroll hydrodynamics," which describes the hydrodynamic behaviour of systems with an underlying Carroll boost invariance. In particular, the geometric properties of the underlying Carroll manifold map to the phenomenological assumptions that are built into these models. |
| Date: | Wed, 12.11.2025 |
| Time: | 16:00 |
| Duration: | 60 min |
| Location: | TU Wien: Wiedner Hauptstr. 8-10, green area, 2nd floor, Sem.R. DA grün 02 A - GEO |
| Contact: | Ankit Aggarwal, Daniel Grumiller |
| Erwin Schrödinger Lecture: Überschrittene Grenzen. Erwin Schrödinger und die Herausforderungen der Wissenschaftsbiografik |
| Speaker: | Magdalena Gronau und Martin Gronau (ZfL Berlin) |
| Abstract: | Seit Ende 2021 sind schwerwiegende Vorwürfe gegen den Physiker Erwin Schrödinger (1887-1961) erhoben worden, die von Pädophilie bis hin zu wiederholtem sexuellen Missbrauch reichen. Diese Anschuldigungen haben den öffentlichen Ruf des Nobelpreisträgers erheblich beschädigt.
In der medialen und akademischen Debatte wurde wiederholt die Frage aufgeworfen, ob diese gravierenden Vorwürfe überhaupt gerechtfertigt sind, litt die Diskussion doch unter einer unklaren Faktenlage: Zentrale Quellen waren bislang weitgehend unzugänglich. Dies hängt zumindest teilweise mit der Veröffentlichung einer Biografie zusammen (Schrödinger: Life and Thought von Walter Moore, 1989), die bereits zum Zeitpunkt ihres Erscheinens als problematisch galt.
Im Rahmen des Vortrags werden zahlreiche bisher unberücksichtigte Quellen ausgewertet und auch ein alternativer Blick auf Schrödingers Privatleben geworfen. |
| Date: | Wed, 12.11.2025 |
| Time: | 17:30 |
| Duration: | 90 min |
| Location: | Erwin Schrödinger Institute, U of Vienna, Boltzmanngasse 9, 1090 Wien, Boltzmann Lecture Hall |
| Contact: | Erwin Schrödinger Institute, secr@esi.ac.at |
| Neutral-Atom Waveguide QED |
| Speaker: | Julien Laurat (Sorbonne University) |
| Abstract: | The coupling of cold atoms with nanophotonic devices has recently opened a variety of novel opportunities for controlling light-matter interactions. This combination not only promises improved scalability and figures of merit compared to free-space implementations, but also introduces new paradigms for atom-photon interactions. Dielectric waveguides offer a promising platform for such integration because they enable tight transverse confinement of the propagating light, strong photon-atom coupling in single-pass configurations and the potential for tunable long-range atom-atom interactions mediated by guided photons. |
| Date: | Fri, 14.11.2025 |
| Time: | 10:00 |
| Duration: | 45 min |
| Location: | Helmut Rauch Hörsaal ATI |
| Contact: | Sarah Skoff |
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