Merry Christmas and happy 2020
The seasonal greetings postcard of the Portuguese Physics Society had a little help from Gr@v! Merry Christmas and happy new year of 2020!
Strong Gravity News & Events
XII Black Holes Workshop
The XII Black Holes workshop took place on 19-20 December 2020, at the University of Minho, in the Azurém Campus, Guimarães. As always, a fast paced, intense and stimulating meeting!
Alexandre Correia ceases role as group coordinator
Alexandre Correia, Professor at Coimbra University, ended his term as scientific coordinator of the Gravitational Geometry and Dynamics Group (informally dubbed Gr@v) of CIDMA on 16 December 2019. Prof. Correia will cease to be a full member of CIDMA at the end of 2019 by virtue of his move to Coimbra University. The group is very grateful for his leadership. The new elected scientific coordinator is Carlos Herdeiro.
Gr@v work highlighted in Phys.org
A recent result by Gr@v members, published in Physical Review Letters, was highlighted in a feature article at phys.org. See the article here.
The 2019 Nobel Physics Prize - part II
On December 11th 2019, Gr@v member João Rosa gave an outreach talk on the part of the 2019 Nobel Physics Prize awarded for theoretical discoveries in physical cosmology to James Peebles.
Slow-roll inflation and the swampland
Speaker
Kunihito Uzawa (Kwansei Gakuin U., Japan)
Event date
Venue
Maths. Dept. Room Sousa Pinto
Event type
In this talk, we show how the swampland conjecture, which has
recently been attracting attention in string theory and gravity
theory, relates to the slow-roll condition of inflation. First, we
will briefly explain the reason why we focus on the swampland
conjecture to investigate the dynamics of inflation. Next, we discuss
Visit and seminar of Péter Forgács
Professor Péter Forgács from the University of Tours (France) visited Gr@v and presented a seminar on "Non-linear eigenmodes of asymptotically Anti-de-Sitter space".
Moving black holes: Energy extraction, absorption cross section, and the ring of fire
Speaker
Rodrigo Vicente - CENTRA IST
Event date
Venue
Maths. Dept. Room Sousa Pinto
Event type
We consider the interaction between a plane wave and a (counter-moving) black hole. We show that energy is transferred from the black hole to the wave, giving rise to a negative absorption cross-section.
Outstanding Presentation Award - Gold Prize - for João Oliveira
Gr@v and MAP-PDMA Ph.D. student João Oliveira was awareded an "Outstanding Presentation Award - Gold Prize" for his scientific presentation at the 29th workshop on General Relativity and Gravitation, in Japan, at the University of Kobe.
More than 200 researchers participated in this conference, of which 66 were selected to deliver oral presentations. Of these, 56 were nominated for the outstanding presentation award, but only 4 were awarded this distinction, including João Oliveira.
Visit of Grigoris Panotopoulos
Grigoris Panotopoulos, from IST-Lisbon, visited Gr@v on 28-29 November to discuss tidal Love numbers of compact objects.