743 citations · 9.3k across the 169 of their papers we have counts for
173 papers
Conformally Interacting Dark Energy with Early and Late-Time Measurements
Shambel Sahlu, Abunie Gezahegn, Amare Abebe +2
The conformal interacting dark energy (CIDE) model is investigated by introducing a scalar field representing dark energy (DE) coupled to dark matter (DM) via a conformal transform…
Light propagation and intensity transport in metric-affine geometry
Antonio De Felice, Lavinia Heisenberg, Gonzalo J. Olmo +1
We study electromagnetic wave propagation in metric--affine geometries, where torsion and non-metricity may be present and the coupling between electromagnetism and spacetime is no…
Dynamical dark energy in the Bianchi Type-V Universe with DESI DR2 BAO, SNIa compilation and RSD measurements
Shambel Sahlu, Álvaro de la Cruz-Dombriz, A. H. A. Alfedeel +2
We investigate the cosmological implications of dynamical dark energy (DDE) models within an anisotropic, spatially homogeneous Bianchi Type-V spacetime framework using a cov…
Stellar structure in gravity: some exact solutions
Aliya Batool, Abdul Malik Sultan, Gonzalo J. Olmo +1
We find some exact solutions for constant-density and quark matter equations of state in stellar structure models framed within the theory of gravity, where i…
Boundary terms and on-shell action in Ricci-based gravity theories: the Hamiltonian formulation
Gerardo Mora-Pérez, Gonzalo J. Olmo, Diego Rubiera-Garcia +1
Considering the so-called Ricci-based gravity theories, a family of extensions of General Relativity whose action is given by a non-linear function of contractions and products of…
Nonsingular, lump-like, scalar compact objects in -dimensional Einstein gravity
Roberto V. Maluf, Gerardo Mora-Pérez, Gonzalo J. Olmo +1
We study the space-time geometry generated by coupling a free scalar field with a non-canonical kinetic term to General Relativity in dimensions. After identifying a family…