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; Phys. Dark Univ. 52 (2026) 102317; arXiv:2603.07662 [gr-qc].

Publication type
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) 140212, 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; Phys. Rev. D 113 (2026) 023541, 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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Latest Cosmology News & Events

Dynamics and perturbations of Geometric Inflation assisted by a scalar field in the early Universe

GGD - Gr@V Seminar
Speaker
Luciano Navarro (Universidad de Valencia, Department of Theoretical Physics)
Event date
Venue
Hybrid: Sala Sousa Pinto and Teams
Event Website
Event type

Geometric Cosmology—and in particular Geometric Inflation (GI)—provides a higher-curvature mechanism capable of producing an accelerated expansion in the early Universe without invoking an inflaton in its minimal realization.