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

Phantom scalar field with arbitrary potential: accelerating scaling attractors, S. Halder, S. Pan, P. M. Sá, T. Saha; arXiv: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; arXiv: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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Exploring the viability of pseudo Nambu-Goldstone boson as ultralight dark matter in a mass range relevant for strong gravity applications, A. P. Morais, V. Oliveira, A. Onofre, R. Pasechnik, R. Santos; Phys. Rev. D 110 (2024) 035008; arXiv:2305.03776 [gr-qc].

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Regular Articles
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Latest Cosmology News & Events

New group members

Romain Gervalle (Ph.D. U. Tours, France, 2025) and TianXiang Ma (M.Sc, Lanzhou U., China, 2024) have joined our group in October 2025. Ana Bokulic (Ph.D. U. Zagreb, Croatia, 2024), already a group member, also renewed her group membership into 2026. Great to have you in the group!