Non-local infinite derivative theories of gravity
Abstract: Anti-de Sitter is not a globally hyperbolic spacetime. When studying a field theory on anti-de Sitter, one needs an appropriate choice of boundary conditions at the conformal boundary such that the classical field equation is well-posed.
The European Space Agency (ESA) Advanced Concepts Team (ACT) has created a cool interactive webpage for visualization of the lensing due to a black hole, featuring black holes with scalar hair found by our group. Try it here! (Works better with the Chrome browser)
The proceedings of the third Amazonian Symposium on Physics, held in Belém, Brazil (28th Sep - 2nd Oct 2015), have been published as a special issue of IJMPD. This meeting closed the successful NRHEP Marie Curie action (2012-2015), coordinated by our group, and the proceedings are edited by the action's node coordinators.
Jorge Delgado successfully finished his Physics M.Sc. at Aveiro University, on September 20th 2016, by defending a thesis with title "Kerr black holes with electric charge and scalar hair". This thesis was supervised by Gr@v researchers and examined by Prof. Filipe Mena, from the University of Minho. Well done Jorge!
Gr@v's PhD student Helgi Runarsson was awarded a Hartle Award for the best talk by a student in his GR21 session (A1). The award consists of a small money prize, a 3-year membership in the International Society on General Relativity and Gravitation, and a certificate.
The 20th National Meeting of the Portuguese Physics Society (SPF) took place at the University of Minho, in Braga, in the 8-9 September 2016. Gr@v member C. Herdeiro was one of the invited plenary speakers.
Abstract: On 14 September 2016, the Laser Interferometer Gravitational-WaveObservatory (LIGO) detected the first gravitational wave signal everdirectly observed. This observation also represents the first directobservation of a black-hole binary and has opened up a qualitatively newwindow to the universe.