299 citations · 321 across the 8 of their papers we have counts for
8 papers
Cosmographic analysis of sign-switching dark energy
Mariam Bouhmadi-López, Beñat Ibarra-Uriondo
Inspired by the well-studied CDM model, we propose and investigate a class of dynamical dark energy models that evolve from a negative cosmological constant, transitioni…
Insights in cosmology: the relevance of the connection
Ismael Ayuso, Mariam Bouhmadi-López, Che-Yu Chen +3
We explore the role of the affine connection in gravity, a modified theory where gravity is governed by non-metricity within the symmetric teleparallel framework. Although t…
Addressing and tensions within cosmology
Carlos G. Boiza, Maria Petronikolou, Mariam Bouhmadi-López +1
We investigate the viability of gravity as an alternative framework to address the and tensions in cosmology. Focusing on three representative models, we…
The CosmoVerse White Paper: Addressing observational tensions in cosmology with systematics and fundamental physics
Eleonora Di Valentino, Jackson Levi Said, Adam Riess +533
The standard model of cosmology has provided a good phenomenological description of a wide range of observations both at astrophysical and cosmological scales for several decades.…
Observational constraints on generalised axion-like potentials for the late Universe
Hsu-Wen Chiang, Carlos G. Boiza, Mariam Bouhmadi-López
Axions have emerged as compelling candidates for describing the dark sector of the Universe. In this work, we explore quintessence models inspired by axion-like potentials as a dyn…
Cosmological perturbations in a generalised axion-like dark energy model
Carlos G. Boiza, Mariam Bouhmadi-López
We analyse the cosmological evolution of a generalised axion-like field that drives the late-time acceleration of the Universe. This model can exhibit tracking behaviour, which all…
Speeding up the Universe with a generalised axion-like potential
Carlos G. Boiza, Mariam Bouhmadi-López
Understanding the late-time acceleration of the Universe is one of the major challenges in cosmology today. In this paper, we present a new scalar field model corresponding to a ge…
Dark energy with a shift-symmetric scalar field: obstacles, loophole hunting and dead ends
Teodor Borislavov Vasilev, Mariam Bouhmadi-López, Prado Martín-Moruno
We discuss the possibility of a scalar field being the fundamental description of dark energy. We focus on shift-symmetric scalar-tensor theories since this symmetry potentially av…