Arrangementer

Speaker: Apoorv Tiwari (University of Southern Denmark) Abstract: It has recently been understood that finite (internal) global symmetries in quantum field theory are describe fusion higher categories, sometimes referred to as global categorical symmetries. In this talk, I will introduce a framework based on Symmetry Topological Field Theory (SymTFT) for characterizing and classifying both gapped and gapless phases, as well as phase transitions in quantum systems with global categorical symmetries. This characterization will be expressed in terms of sets of condensed, confined, and deconfined generalized symmetry charges, evoking concepts familiar from superconductivity. Furthermore, I will demonstrate how the SymTFT data can be transformed into an ultraviolet (UV) lattice model—such as an anyon chain model in 1+1 dimensions or a fusion surface model in 2+1 dimensions—that realizes these phases and transitions in the infrared (IR) limit.

Center for Subjectivity Research at the University of Copenhagen was established in 2002 on the basis of a grant from the Danish National Research Foundation (Danmarks Grundforskningsfond). Its three founders were a philosopher, a psychiatrist, and a professor of systematic theology.  Since then, it has had more than 80 employees, attracted more than 250 guest researchers, and secured external funding in excess of 140.000.000 DKK. Currently, its staff involves people with a background in philosophy, psychiatry, sociology, anthropology, and criminology. In my talk, I will outline the history of the center, present some of its distinctive features, and discuss how it over the years has facilitated interdisciplinary collaboration.About Dan ZahaviDan Zahavi is Professor of Philosophy and director of the Center for Subjectivity Research at the University of Copenhagen. Zahavi’s primary research area is phenomenology and philosophy of mind, and their intersection with empirical disciplines such as psychiatry, psychology, and anthropology. In addition to various scholarly works on the phenomenology of Husserl, Zahavi has mainly written on the nature of selfhood, self-consciousness, intersubjectivity, empathy, and most recently on topics in social ontology. His most important publications include Self-awareness and Alterity (1999/2020), Husserl’s Phenomenology (2003), Subjectivity and Selfhood (2005), The Phenomenological Mind (together with Shaun Gallagher) (2008/2012/2021), Self and Other (2014), Husserl’s Legacy (2017), Phenomenology: The Basics (2019), and Being We (forthcoming in 2025). His work has been translated into more than 30 languages.

(Konservator Clara Bratt Lauridsen, Konserveringscenter Vejle. Foto: Steffen Stamp.) Bliv klogere på, hvordan man bruger fysik til at undersøge lagene i malerkunsten – og se det selv på Brandts Kunstmuseum.Kom med til en spændende eftermiddag, hvor deltagerne får viden om, hvordan fysikere og konservatorer bruger hyperspektrale kameraer til at undersøge de mange lag i malerier.Vi skal se en udstilling af Vilhelm Lundstrøm og høre om, hvordan fysikere fra Syddansk Universitet har bidraget til at analysere malerierne.Undervejs serverer vi en sandwich.Det er gratis at deltage; men du skal tilmelde dig senest den 13. novemberMålgruppe er gymnasielever og gymnasieklasser.

(Konservator Clara Bratt Lauridsen, Konserveringscenter Vejle. Foto: Steffen Stamp.) Bliv klogere på, hvordan man bruger fysik til at undersøge lagene i malerkunsten – og se det selv på Brandts Kunstmuseum.Kom med til en spændende eftermiddag, hvor deltagerne får viden om, hvordan fysikere og konservatorer bruger hyperspektrale kameraer til at undersøge de mange lag i malerier.Vi skal se en udstilling af Vilhelm Lundstrøm og høre om, hvordan fysikere fra Syddansk Universitet har bidraget til at analysere malerierne.Undervejs serverer vi en sandwich.Det er gratis at deltage; men du skal tilmelde dig senest den 13. novemberMålgruppe er gymnasielever og gymnasieklasser.

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Valentino Picotti forsvarer sin ph.d.-afhandling: Language Support for Microservices Development.Professor Jacopo Mauro vil være ordstyrer ved arrangementet.

Speaker: Guillaume Laplante-Anfossi (University of Southern Denmark) Abstract:Given a curved A-infinity algebra and a bounding cochain (a.k.a Maurer—Cartan element), one can twist the former by the latter to get a new A-infinity algebra where the curvature is zero. This uncurving procedure plays a central rôle in Floer theory, where Fukaya categories are naturally curved objects. The goal of this talk will be to give a universal characterization of the procedure, using the theory of operads: we will show that the operad cMC, whose algebras are curved A-infinity algebras endowed with a Maurer—Cartan element, together with its natural morphism to the A-infinity operad, is terminal in a certain comma category. This category does not contain the Maurer—Cartan equation, thus the theorem provides a way to « rediscover » it as the answer to a universal (algebraic) problem. This is joint work with Adrian Petr and Vivek Shende.

Speaker: Christoph Nega (Technical University of Munich)Abstract: In my talk, I will discuss Feynman Integrals which are the cornerstone for precision computations in perturbative physics ranging from quantum field theory to classical general relativity. The two main examples will be self-energies in quantum electrodynamics and the scattering of black holes in a perturbative treatment of general relativity. I will introduce the relevant concepts in the context of Feynman Integrals, as integration by parts relations, master integrals, canonical integrals, iterated integrals and others. Moreover, I will show that Feynman Integrals are related to period integrals on geometries, particularly on Calabi-Yau varieties. This knowledge can be used to compute them. At the end, I will discuss methods to numerically evaluate the Feynman Integrals appearing in my examples.

How does the digital revolution challenge traditional notions of permanence, authenticity, and ownership in archives?

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Find det rigtige studiejob eller praktikforløb med SDU's jobbank Er du på jagt efter et spændende studiejob, en relevant praktik*, eller en organisation, du kan inddrage i dit speciale eller en anden opgave? Eller er du måske bare lidt nysgerrig på, hvad der er af spændende job- og samarbejdsmuligheder for dig som studerende?  Så er det her webinar lige noget for dig!   I løbet af 45 minutter får du …  [list][*]Introduktion til hvordan du bruger SDU’s jobbank bedst muligt, herunder gennemgang af jobbankens funktioner samt opsætning af profil og jobagent [/list][list][*]Tips til hvad du kan gøre, hvis du ikke liiige finder det, du er på jagt efter i jobbanken  [/list][list][*]Hacks til at ansøgning og CV, herunder anbefaling af programmer  [/list]*Her dækker ”praktik” både over ”Projektorienteret forløb” og ”Virksomhedsprojekt”.  Forberedelse [list][*]Log ind på SDU’s jobbank på jobbank.sdu.dk med dit studenterlogin. [/list] Lidt praktisk info [list][*]Uanset hvilket studie og semester, du går på, er du velkommen. [/list][list][*]Du kan logge på webinaret fra kl. 14:00, men oplægget går først i gang kl. 14:15.  [/list][list][*]Webinaret bliver ikke optaget.  [/list]

Why is there a sudden and sharp drop in births occurring in so many countries in the 2010-20 decade?

Speaker: Michael Borinsky The Institute for Theoretical Studies (ETH-ITS), Zürich Abstract:I will present new results on the asymptotic growth rate of the Euler characteristic of Kontsevich's commutative graph complex. These results imply the same asymptotic growth rate for the top-weight Euler characteristic of M_g, the moduli space of curves, due to a recent work by Chan, Galatius and Payne. Further, they establish the existence of large amounts of unexplained cohomology in this graph complex. I will explain the role of this graph complex from the perspective of M_g's cohomology.

Speaker: Meer Ashwinkumar University of Bern Abstract:TBA

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What key strategies should Denmark prioritise during its EU Presidency?

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