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 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.
Gr@v members co-author a paper in Physical Review Letters suggesting GW190521 may be a hint of a new dark matter particle.
The behaviour of low mass scalar fields around black holes is of great interest in the context of dark matter models consisting of a massive scalar field (such as the axion) an
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.
Space-Time Approach to Quantum Electrodynamics
R. P. Feynman
Phys. Rev. 76 (1949) 769
Screened modified gravity is inherently elusive: screening mechanisms suppress the propagation of additional gravitational degrees of freedom in typical astrophysical scenarios, allowing these theories to avoid constraints coming from weak field observations.
Ultralight bosonic fields are compelling dark-matter candidates and arise in a variety of beyond-Standard-Model scenarios. These fields can tap energy and angular momentum from spinning black holes through superradiant instabilities, during which a macroscopic bosonic condensate develops around the black hole.
