The MaGraTh team published over 70 papers in international scientific journals, including 10 in Physical Review Letters and two in Nature (most of them cover of the journal and/or Editor's Suggestions). The team organized 15 conferences and schools and delivered several outreach talks in highschools and elsewhere, as well as appearing regularly in the media (newspapers and television). We were invited to over 50 conferences and workshops as invited plenary speakers.
Among the main scientific results, we have
Shown that Strong Cosmic Censorship does not hold generically. Our acceptance of General Relativity as a theory describing our universe
hinges on the ability of the theory to hide potential singularities. This is known as the Cosmic Censorship
Conjecture, and is an unproven assumption. In a PRL Editor’s Suggestion, we have recently shown that Strong
Cosmic Censorship does not hold generically. This work has triggered a flurry of activity, of which we have
seen only the first developments.
V. Cardoso, J. L. Costa, K. Destounis, P. Hintz and A. Jansen, Quasinormal modes and Strong Cosmic Censorship,
Phys. Rev. Lett.120 no.3 031103 (2018)
2. Shown that LIGO historical detection is strong evidence for objects with photspheres, but is not in itself a proof of the existence of black holes.
V. Cardoso, E. Franzin
and P. Pani, Phys. Rev. Lett. 116 (2016) 171101; arXiv:1602.07309 [gr-qc]. This work was selected by the Editors of PRL to feature as Editor's Suggestion, Synopsis and PRL cover
article for further reading, for its novelty, groundbreaking and interdisciplinary character.
V. Cardoso, E. Franzin, A. Maselli, P. Pani and G. Raposo,
Phys. Rev. D 95, 084014 (2017); arXiv:1701.01116 [gr-qc].
Editor's Suggestion for outstanding quality)
V.Cardoso S. Hopper, C. F. B. Macedo, C. Palenzuela and P.Pani ``Gravitational-wave signatures of exotic compact objects and of quantum corrections at the horizon scale,''
Phys. Rev. D 94, no. 8, 084031 (2016)
doi:10.1103/PhysRevD.94.084031
[arXiv:1608.08637 [gr-qc]].
V. Cardoso and P. Pani, Testing the nature of dark compact objects: a status report, Living Rev. Rel.22 (2019)
These works introduced the concept of echoes in gravitational-wave science. Echoes are currently being searched for in LIGO data and detection strategies are being implemented in its pipeline. This work was followed by invited review articles to Nature Astronomy anf Living Reviews in Relativity.
3. Shown that future gravitational wave detectors, such as ESA's space-based LISA will be able to test Einstein's theory in the strongfield regime through the observation of the
vibrations of black holes (E. Berti, A. Sesana, E. Barausse, V. Cardoso and C. Belczynski, Phys. Rev. Lett. 117 (2016) 101102; arXiv:1605.09286 [gr-qc].)
4. Shown that rotating neutron stars, such as pulsars, can help in constraining dark matter models, through a mechanism known as superradiance. In parallel, we have shown how to demonstrate in the laboratory the existence of such an effect. The experiment is currently being implemented in Nottingham University (V. Cardoso, Antonin Coutant, Mauricio Richartz, Silke Weinfurtner, Phys. Rev. Lett. 117, 271101 (2016); arXiv:1607.01378 [gr-qc].)
5. Finally, in a follow-up to my ERC Starting Grant, we have cemented black hole physics as a potential tool to inform us on dark matter. This can happen either via electromagnetic observations of spinning objects, or through gravitational-wave detection of monochromatic waves from bosonic condensates:
R. Brito, S. Ghosh, E. Barausse, E. Berti, V. Cardoso, I. Dvorkin, A. Klein and P. Pani, Stochastic and resolvable gravitational waves from ultralight bosons,
Phys. Rev. Lett.119 no. 13, 131101 (2017)
doi:10.1103/PhysRevLett.119.131101
[arXiv:1706.05097 [gr-qc]].
R. Brito, S. Ghosh, E. Barausse, E. Berti, V. Cardoso, I. Dvorkin, A. Klein and P. Pani, Gravitational wave searches for ultralight bosons with LIGO and LISA, Phys. Rev. D96, no. 6, 064050 (2017) doi:10.1103/PhysRevD.96.064050
[arXiv:1706.06311 [gr-qc]].
V. Cardoso, Ó. J. C. Dias, G. S. Hartnett, M. Middleton, P. Pani and J. E. Santos, Constraining the mass of dark photons and axion-like particles through black-hole superradiance,
JCAP 1803, no. 03, 043 (2018)
doi:10.1088/1475-7516/2018/03/043
[arXiv:1801.01420 [gr-qc]].
