| Thursday 15 May 2025 | |
| Events for day: Wednesday 18 May 2022 |
| 09:00 - 16:30 The 12th ILSF Users' Meeting School ILSF The meeting provides a unique forum for experienced as well as potential users of synchrotron light source in Iran to discuss the scientific, technical, and practical issues about the use of synchrotron radiation in basic science, engineering, and medicine. ... 11:00 - 12:00 Wednesday Weekly Seminar - google meet Universal Thermal Corrections to Symmetry-Resolved Entanglement Entropy and Full Counting Statistics School PARTICLES AND ACCELERATORS We consider the symmetry-resolved R'{e}nyi and entanglement entropies for two-dimensional conformal field theories on a circle at nonzero temperature. We assume a unique ground state with a nonzero mass gap induced by the system's finite size and then calculate the leading corrections to the contributions of individual charge sectors in a low-temperature expansion. Besides the size of the mass gap and the degeneracy of the first excited state, these universal corrections depend only on the four-point correlation function of the primary fields. We also obtain thermal corrections to the full counting statistics of the ground state and find that ... 13:30 - 15:00 Weekly Seminar (Online) The Physics of the MHD Disk-Jet Transition in Binary Systems https://www.skyroom.online/ch/soa/weekly-seminar School ASTRONOMY In this talk I present a detailed physical analysis of the jet-launching mechanismof a circum-stellar disk that is located in a binary system. Applying 3D resistive magneto-hydrodynamics simulations, I investigate the local and global properties of the system, such as angular momentum transport and accretion and ejection mass fluxes. In comparison to previous works, for the first time the full magnetic torque , the presence of an outflow and thus the angular momentum transport by vertical motion, and the binary torque have been considered. I discuss the specific 3D structure and how it is affected by tidal effects. ... 14:00 - 15:00 Weekly Seminar Condensed Matter and Statistical Physics Group Group School PHYSICS Abstract: Natural hyperbolic two-dimensional systems are a fascinating class of materials that could open alternative pathways to manipulating plasmon propagation and light-matter interactions. Here, we present a comprehensive study of the optical response in Td -WTe2 by means of density-functional and many-body perturbation theories. We show how monolayer WTe2 with in-plane anisotropy sustains hyperbolic plasmon polaritons, which can be tuned via chemical doping and strain. The latter is able to extend the hyperbolic regime toward the near-infrared with low losses. Moreover, WTe2 can even be switched between elliptic and hype ... 14:00 - 15:00 Weekly Seminar Investigation of Hyperbolic Plasmon Polaritons in a Td-WTe2 Single Layer School QUANTUM PHYSICS AND MATTER Natural hyperbolic two-dimensional systems are a fascinating class of materials that could open alternative pathways to manipulating plasmon propagation and light-matter interactions. Here, we present a comprehensive study of the optical response in Td -WTe2 by means of density-functional and many-body perturbation theories. We show how monolayer WTe2 with in-plane anisotropy sustains hyperbolic plasmon polaritons, which can be tuned via chemical doping and strain. The latter is able to extend the hyperbolic regime toward the near-infrared with low losses. Moreover, WTe2 can even be switched between elliptic and hyperbolic regimes with a mode ... 16:30 - 18:30 Mathematical Logic Weekly Seminar Bounding Nonminimality School MATHEMATICS James Freitag and I recently introduced what we call the �degree of nonminimality�. It measures, in some sense that I will make precise, how many parameters are needed to witness that a given finite rank type is not of rank 1. I will explain how the truth of the Borovik-Cherlin conjecture for algebraic homogeneous spaces, applied to binding group actions in certain totally transcendental theories of interest (namely DCF and CCM), leads to a useful bound on the degree of nonminimality. This is motivated by the search for new methods to verify the strong minimality of an algebraic differential equation. Zoom info: ... |