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]
Carlos Herdeiro, Gr@v member and founder, took office on 1 October as the new Scientific Coordinator of CIDMA, beginning a four-year term. The new coordination team also includes Natália da Costa Martins, Maria Elisa Carrancho Fernandes, and Nelson Filipe Loureiro Vieira. UA News coverage here. We wish the team every success in this new chapter.
A recently published paper by Gr@v (J. Ferreira et al. [PRD 114 (2026) 064005]) was covered by Science Alert. Read the news piece here.
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.