CPT

Calendar of Physics Talks Vienna

THE PHYSICAL REVIEW: Review Process & Publishing in an Open Access and Artificial Intelligence World
Speaker:Robert Wimmer (American Physical Society)
Abstract:I'll describe briefly the structure of the different Physical Review Journals (with an emphasis on PRD/PRL and OA Journals) and the review process of the Physical Review. Then I will discuss recent disruptions in science publishing by Open Acess mandates and Artificial Intelligence. The presentation will be brief, the focus should be on questions and discussions.
Date: Mon, 26.06.2023
Time: 16:00
Duration: 60 min
Location:Seminar room DB03 (gelb), TU Wien, Wiedner Hauptstr. 8-10
Contact:Anton Rebhan, TU Wien

Non-relativistic geometry and higher-spins in the fractional quantum Hall effect
Speaker:Patricio Salgado-Rebolledo (Wroclaw Tech. U.)
Abstract: It is well-known that the low-energy regime of the fractional quantum Hall effect (FQHE) can be described by Abelian and non-AbelianChern-Simons theories, while the corresponding chiral edge states are described by rational conformal field theories. However, other collective excitations exist in the FQHE that cannot be described by topological field theory. One example is the long-wavelengthlimit of the Girvin-MacDonald-Platzman (GMP) mode, a gapped spin-2 mode associated with an internal metric of the system, which can be described in terms of non-relativistic geometry. Moreover, in addition to the GMP mode, additional collective excitationsdescribed by non-relativistic higher-spin fields need to be introduced in the known effective field theory of the FQHE to reproduce the complete GMP algebra. [...]
Date: Tue, 27.06.2023
Time: 14:00
Duration: 60 min
Location:SEM.R.DA gruen 05 (Freihaus, TU Wien, Wiedner Hauptstrasse 8)
Contact:D. Grumiller, S. Fredenhagen, E. Battista, R. Ruzziconi

Magnetic confinement fusion in optimized stellarators
Speaker:Christopher Albert (Group Plasma Physics, TU Graz)
Abstract:Fusion power plants would be a welcome component in a sustainable energy system. After decades of research and development, several key questions remain: Where do we stand? What are the open problems in physics and technology? How can the remaining research and development towards a fusion reactor with high energy gain be accelerated in a cost-effective manner? In this presentation, some basics will be outlined first to understand the required parameters of a fusion reactor and the historical development of device size and performance. Then we will focus on the stellarator concept for magnetically confining fusion plasmas using complex 3D electromagnetic coils. Recent breakthroughs in both, theory and experiment have demonstrated that it is possible to produce highly optimized geometries in simulation, and construct a high-performance machine within the required tolerances. After present
Date: Tue, 27.06.2023
Time: 16:00
Location:TU Wien, Institut für Angewandte Physik, E134 1040 Wien, Wiedner Hauptstraße 8-10 Yellow Tower „B“, 5th floor, SEM.R. DB gelb 05 B
Contact:Univ.Prof. Dr. Friedrich Aumayr

Theory predictions for top-pair production at collider experiments
Speaker:Mathieu Pellen (Uni Freiburg)
Abstract:In this presentation, I will review recent developments in the precise computation of top-pair and associated production at collider experiments. In particular, I will focus on calculations that account for off-shell and non-resonant effects. Such computations have the advantage to be directly comparable to experimental data at the Large Hadron Collider (LHC) or at future lepton colliders.
Date: Tue, 27.06.2023
Time: 16:15
Duration: 60 min
Location:Fakultaet fuer Physik, Erwin Schroedinger-HS, Boltzmanngasse 5, 5. Stock
Contact:A. Hoang, M. Procura