Cosmology is the study of the large scale structure of the Universe, as well as its dynamics. Our group has been involved in the study and development of cosmological models, in particular to explain the accelerated phases of the cosmological evolution, dubbed inflationary phases.
For our latest developments/activities in this area, please see the listing below.
Gravitational waves from warm inflation in the weak dissipative regime, O. Luongo, T. Mengoni, P. M. Sá; Phys. Dark Univ. 52 (2026) 102317; arXiv:2603.07662 [gr-qc].
Phantom cosmology with arbitrary potential: New accelerating scaling attractors, S. Halder, S. Pan, P. M. Sá, T. Saha; Phys. Lett. B 873 (2026) 140212, arXiv:2510.17765 [gr-qc].
Gravitational waves from two scalar fields unifying the dark sector with inflation, O. Luongo, T. Mengoni, P. M. Sá; Phys. Rev. D 113 (2026) 023541, arXiv:2509.21200 [gr-qc]
Gravitational echoes of lepton number symmetry breaking with light and ultralight Majorons, Andrea Addazi, Antonino Marciano, António P. Morais, Roman Pasechnik, João Viana, Hao Yang; JCAP 09 (2023) 026, 2304.02399 [hep-ph].
Gravitational waves from a scotogenic two-loop neutrino mass model, Cesar Bonilla, A. E. Carcamo Hernandez, João Gonçalves, Vishnudath K. N., António P. Morais, Roman Pasechnik; Phys.Rev.D 109 (2024) 9, 095022, 2305.01964 [hep-ph]
The II Workshop on Fundamental Fields and Compact Objects, integrated in the NewFunFiCO network, will be held in person at the Institute of Physical Sciences, UNAM-Morelos, Mexico, 17–19 November 2026. More info here.
The XIX edition of the Black Holes Workshop will take place at the University of Minho, on 17-18 December 2026. More info here.
C. Herdeiro visited Hunan Normal University for two weeks in August-September 2026, where he gave a lecture course on Gravitating Solitons and Hairy Black holes. During the visit it was also possible to interact with collegues from Jianxi Normal University. Many thanks to Mengjie Wang and the whole group at HNU, led by Prof. Jiliang Jing, as well as to Hyat Huang and the whole group in JNU, for a wonderful hosting and great scientific interactions in Changsha and Nanchang.
Gr@v students M. Brito, J. Ferreira and M. Mariano were amongst the participants of the New Frontiers in Strong Gravity meeting in Benasque, in July 2026.
João Novo successfully defended his Ph.D. thesis with title Light rings, shadows and geodesic structure
of four and five dimensional spacetimes on July 27th 2026. The Ph.D. committe was composed by Astrid Eichhorn, Volker Perlick, Petya Georgieva, António Morais, Pedro Cunha (co-advisor) and João Matias (president). The thesis was advised by C. Herdeiro. Congratulations João!