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Calendar of Physics Talks Vienna
| A topological path to the Hawking temperature: astrophysical black holes and analogues |
| Speaker: | Charles Robson (Tampere University) |
| Abstract: | In this talk, a topological approach to determining the Hawking temperature of black holes is presented, embodied in a powerful, covariant formula involving the Euler characteristic of a (Euclideanized) spacetime manifold. This method has the advantage of allowing thermodynamical calculations to be simply carried out on spacetimes of complicated metrical form, as well as shining a light on the little-known but deep links between lower-dimensional topology and black hole thermodynamics. The method's efficacy for quantum soliton thermodynamics is also illustrated. Based on Phys. Rev. D 99, 044042 (2019) and New J. Phys. 21 (2019) 053042. |
| Date: | Thu, 01.06.2023 |
| Time: | 15:00 |
| Duration: | 60 min |
| Location: | TU Wien, Freihaus, Seminar room 10th floor |
| Contact: | Daniel Grumiller, Iva Lovrekovic |
| Large-scale structure cosmology at the interface of numerical and analytical techniques |
| Speaker: | Oliver Hahn (Astrophysics, Vienna) |
| Abstract: | The quest for physics beyond the standard models of cosmology and particle physics is the primary motivation for upcoming observatories in space and on earth.The cosmic large-scale structure provides a unique testing ground for connecting fundamental physics to astronomical observations.A detection of the signature of massive neutrinos,deviations from Einsteinâs theory of gravity,physical insights into the earliest inflationary phase of the Universe and the microphysical nature of dark matter and dark energy are all within the potential reach of these experiments in the next decade.In order to accurately link observations to fundamental physics,analytical,numerical, and data-driven techniques will be used.I will give a general introduction and discuss recent progress at the interface between numerical simulations and analytical calculations that enable faster and more robust predictions |
| Date: | Thu, 01.06.2023 |
| Time: | 15:30 |
| Duration: | 60 min |
| Location: | Seminarraum A, Waehringer StraÃe 17, 2. Stock |
| Contact: | P. Chrusciel, D. Fajman |
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