Visit of T. Harko and M. Sanchis Lozano
Our group had the pleasure to host the visits of Prof. Tiberiu Harko and Prof. Miguel Angel Sanchis Lozano, who presented stimulating seminars on modified gravity and particle physics/cosmology.
Strong Gravity News & Events
Invited talk by N. Santos at Grav@Zon
Nuno Santos, a Gr@v Ph.D. student was an invited speaker at the Grav@Zon group meeting. The talk is available in YouTube.
Emergent gravity from off-shell energy fixing
Speaker
Francisco de Anda (Tepatitlán's Institute for Theoretical Studies)
Event date
Venue
online (only)
Event type
Gravity may be an emergent phenomenon instead of a fundamental force. This may lead to a viable theory for quantum gravity. The basic concepts of emergent gravity will be introduced. It will be shown that the requirement of energy conservation through off-shell process generates a gravity-like force. The necessary conditions for gravity to emerge from QFT will be discussed.
Tim 20-21, Timisoara
E. Radu was one of the invited plenary speakers of the Tim 20-21 conference, organized by the West University of Timisoara, Romania, on November 11-13, 2021.
Gravitational-Wave Transient Catalog 3 (GWTC-3)
Four Gr@v scientists in the top 2%
The 2021 update of the Stanford/Elsevier author database of the standardized citation indicators, features Gr@v members C. Herdeiro and E. Radu in the career long data and (additionally) P. Cunha and N. Sanchis-Gual in the single year 2020 data. All information and data files available here.
Coupling matter and curvature in Weyl geometry- conformally invariant f(R,L_m) gravity
Speaker
Tiberiu Harko (National Institute of Physics and Nuclear Engineering, Romania)
Event date
Venue
Only on campus (Mathematics Department, amphitheater Sousa Pinto)
Event type
We propose an extension of the $f(R,L_m)$ gravity theory by considering the coupling between matter and geometry in conformal quadratic Weyl gravity, explicitly formulated in the Weyl geometry.
Discussion of the paper "Extremal black holes that are not extremal: maximal warm holes" by O. J. Dias, G. T. Horowitz and J. E. Santos
Speaker
Nuno M. Santos (UA)
Event date
Venue
Sala Sousa Pinto and online
Ends on
Event type
Extremal black holes that are not extremal: maximal warm holes
Oscar J. C. Dias, Gary T. Horowitz, and Jorge E. Santos
arXiv:2109.14633 [hep-th]
Ilaria Andrei
Full Name: Ilaria Andrei
Position: MAP-Fis PhD student
Degrees:
- B.Sc. in Physics, University of Trento, 2017
- B.Sc. in Physics, University of Trento, 2017
Dual-Frame Generalized Harmonic Gauge on Hyperboloidal Slices
Speaker
David Hilditch (Instituto Superior Tecnico - Lisbon)
Event date
Venue
On campus (Mathematics Department, amphitheater Sousa Pinto) + Zoom
Event type
Both for studies of cosmic censorship and for practical purposes in gravitational wave astronomy, it is desirable to include future null-infinity in the computational domain. Extending formulations of general relativity known to behave well in the strong-field regime out to infinity with compactification is, however, a subtle game.