Gr@v is a team of researchers, based at the Mathematics and Physics Department of Aveiro University, Portugal, working on strong gravity and high energy physics. The group was established in 2010. In January 2015 Gr@v integrated the FCT funded CIDMA research unit (UIDB/04106/2020 and UIDP/04106/2020), as the Gravitational Geometry and Dynamics research group. The group scientific coordinator is C. Herdeiro.
Gr@v members co-author a paper in Physical Review Letters suggesting GW190521 may be a hint of a new dark matter particle.
Traversable wormholes are intriguing geometries in General Relativity, which have leaked into science fiction becoming known to the general public. Yet, they typically require exotic matter. In a paper in Phys. Rev. Lett., as Editor's suggestion, Gr@v member E. Radu, together with J. Blázquez-Salcedo (Complutense U.) and C. Knoll (U. Oldenburg), have shown how to construct wormholes in General Relativity without the use of exotic matter (or modified gravity).
FCT announced a call for Ph.D. grants, from 1-31 March 2021. If you are looking for Ph.D. opportunities please contact the group coordinator to discuss a possible application.
The paper "Stationary black holes and light rings", by P. Cunha and C. Herdeiro, published in 2020 in Physical Review Letters as Editor's Suggestion, has been placed in the top 5% of all research outputs scored by Altmetric.
C. Herdeiro was one of the invited speakers of the 740ths WEH Seminar "Experimental Tests and Signatures of Modified and Quantum Gravity", held from 1-5 Feb 2021. The talks of the meeting were recorded and are available here. The page is password protected.
FCT announced a call for research contracts for Ph.D. holders, from 29 January to 26 February 2021. If you are looking for a post-doctoral opportunity please contact the group coordinator to discuss a possible application.
The 2021 CIDMA meeting was held on January 21st 2021, online. Our group was represented by Felipe Freitas who discussed the applicability of machine learning techniques from particle physics and gravitational waves to medical applications. Watch here the talks of the 2021 CIDMA meeting.
The December 2020 issue of the Aveiro University magazine "Linhas UA" includes a feature article covering work at Gr@v and the mysteries of black holes. Check this issue here.
Can a black hole be different from the Kerr paradigm depending on its spin? In paper to publishd in Physical Review Letters, Gr@v members C. Herdeiro and E. Radu, in collaboration with H. Silva and N. Yunes (U. Illinois at Urbana-Champaigne, US) and T. Sotirou (U. Nottingham, UK), show that the phenomenon of spontaneous scalarisation can lead to non-Kerr black holes, only if they spin fast enough.
