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Cosmology

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.


Latest Cosmology Publications

Gravitational waves from warm inflation in the weak dissipative regime, O. Luongo, T. Mengoni, P. M. Sá; arXiv:2603.07662 [gr-qc]

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Regular Articles
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Phantom cosmology with arbitrary potential: New accelerating scaling attractors, S. Halder, S. Pan, P. M. Sá, T. Saha; Phys. Lett. B 873 (2026) 140212arXiv:2510.17765 [gr-qc].

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Regular Articles
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Gravitational waves from two scalar fields unifying the dark sector with inflation, O. Luongo, T. Mengoni, P. M. Sá; Phys. Rev. D 113 (2026) 023541arXiv:2509.21200 [gr-qc]

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Regular Articles
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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].

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Regular Articles
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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]

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Regular Articles
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Latest Cosmology News & Events

Black Holes Go South

In the last week of January 2026, a research school on black holes and related topics took place in the beautiful setting of Licán Ray, Chile, nestled in a stunning volcanic lake region. C. Herdeiro was among the invited lecturers, with sessions held - quite fittingly - on whiteboards set up in the garden. The combination of great science and a relaxed, inspiring atmosphere made for a truly memorable event. Many thanks to Adolfo Cisterna and his team for making it all possible.

Tracing Curvature: Where Art Meets Science

On January 20th, 2026, the art–science exhibition was officially (re)opened at Fábrica - Centro Ciência Viva de Aveiro. The event was hosted by Fábrica’s director, Pedro Pombo, and brought together the head of the Department of Mathematics, Alexandre Almeida, and the director of CIDMA, Delfim Torres, along with several colleagues. This initiative is another step in sharing the beauty of science with a broader audience, strengthening the connection between scientific research and society.

Haroldo Lima Junior in Aveiro

Our friend and collaborator Haroldo Junior visited Aveiro for a few weeks in February 2026. A former PhD student in Belém/Aveiro and now a faculty member at Universidade Federal do Maranhão in São Luís, it was a pleasure to have him back. In the photo, Haroldo is joined by our very esteemed secretary, Cristina.