Thermodynamics of Black Holes in Anti-de Sitter Space
S. W. Hawking and D. N. Page
Commun. Math. Phys. 87 (1983) 577-588
A call for a 1 year postdoctoral grant in High Energy Physics, within the research grant “From Higgs phenomenology to the unification of fundamental interactions", PTDC / FIS-PAR / 31000/2017, is open from the 19th of April to the 14th of May 2021. See the eracareers announcement (in Portuguese and English) here.
Celebrating the 2020 Physics Nobel Prize for Black Holes, here is an outreach article published in Gazeta de Física (published by the Portuguese Physics Society) by C. Herdeiro. The article pdf can be found in attachment.
In this talk I will first review a few intriguing properties of black hole quasinormal modes in the eikonal limit or in the near extremal limit (for the black hole). After that I will show how to relate quasinormal modes to the black hole shadows, and how to formulate a test for such relation.
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Gr@v member Felipe Freitas will lecture a free course on "Introduction to computer vision with pyTorch". Classes will take place on Fridays (the next class will be April 9th 2021) every two weeks, from 2:30 pm to 4:30 pm. More info below (in Portuguese).
Celebrating the international day of Mathematics, March 14th, which is also Einstein's birthday, C. Herdeiro gave an outreach talk in the Maths Dept. of Aveiro on "Pi and Einstein: from the Universe of Geometry to the Geometry of the Universe". It can be seen here (in Portuguese).
Within the context of the European COST Action GWverse, the community has sumarized the state of the art and propects for the future in a comprehensive roadmap: Black holes, gravitational waves and fundamental physics: a roadmap. The GWverse roadmap, co-authored by our group, has been selected by the Editorial Board of Classical and Quantum Gravity (CQG) as one of the journal's Highlights of 2019-2020.
A “time”-covariant Schrödinger equation is defined for the minisuperspace model of the Reissner–Nordström (RN) black hole, as a “hybrid” between the “intrinsic time” Schrödinger and Wheeler–DeWitt (WDW) equations. To do so, a reduced, regular, and “time(r)”-dependent Hamiltonian density is constructed, without “breaking” the re-parametrization covariance r=f (˜r).
The article "Traversable wormholes in Einstein-Dirac-Maxwell theory", recently published in Phys. Rev. Lett. as Editor's suggestion, co-authered by Gr@v member Eugen Radu, was featured in Physics.
A recent Gr@v co-authored article is ranked #130 in all time media coverage of Phys. Rev. Lett. outputs. Watch here (in English) and here (in Portuguese) video explanations of the work.