Finite-time cosmological singularities and the possible fate of the Universe
Singularities in any physical theory are either remarkable indicators of the unknown
underlying fundamental theory, or indicate a change in the description of the physical reality …
underlying fundamental theory, or indicate a change in the description of the physical reality …
Dynamical systems applied to cosmology: dark energy and modified gravity
Abstract The Nobel Prize winning confirmation in 1998 of the accelerated expansion of our
Universe put into sharp focus the need of a consistent theoretical model to explain the origin …
Universe put into sharp focus the need of a consistent theoretical model to explain the origin …
Tale of stable interacting dark energy, observational signatures, and the H0 tension
W Yang, S Pan, E Di Valentino… - … of Cosmology and …, 2018 - iopscience.iop.org
We investigate the observational consequences of a novel class of stable interacting dark
energy (IDE) models, featuring interactions between dark matter (DM) and dark energy (DE) …
energy (IDE) models, featuring interactions between dark matter (DM) and dark energy (DE) …
[HTML][HTML] Cosmology and fundamental physics with the Euclid satellite
Abstract Euclid is a European Space Agency medium-class mission selected for launch in
2020 within the cosmic vision 2015–2025 program. The main goal of Euclid is to understand …
2020 within the cosmic vision 2015–2025 program. The main goal of Euclid is to understand …
[HTML][HTML] Cosmology and fundamental physics with the Euclid satellite
Abstract Euclid is a European Space Agency medium-class mission selected for launch in
2019 within the Cosmic Vision 2015–2025 program. The main goal of Euclid is to …
2019 within the Cosmic Vision 2015–2025 program. The main goal of Euclid is to …
Dynamical systems perspective of cosmological finite-time singularities in gravity and interacting multifluid cosmology
SD Odintsov, VK Oikonomou - Physical Review D, 2018 - APS
In this work we shall investigate the occurrence of future cosmological finite-time
singularities in the dynamical system corresponding to two cosmological theories, namely …
singularities in the dynamical system corresponding to two cosmological theories, namely …
Cosmological evolution with interaction between dark energy and dark matter
YL Bolotin, A Kostenko, OA Lemets… - International Journal of …, 2015 - World Scientific
In this review we consider in detail different theoretical topics associated with interaction in
the dark sector. We study linear and nonlinear interactions which depend on the dark matter …
the dark sector. We study linear and nonlinear interactions which depend on the dark matter …
Large-scale instability in interacting dark energy and dark matter fluids
J Väliviita, E Majerotto, R Maartens - Journal of Cosmology and …, 2008 - iopscience.iop.org
If dark energy interacts with dark matter, this gives a new approach to the coincidence
problem. But interacting dark energy models can suffer from pathologies. We consider the …
problem. But interacting dark energy models can suffer from pathologies. We consider the …
Dynamics of an interacting Barrow holographic dark energy model and its thermodynamic implications
In this paper, using Barrow entropy, we propose an interacting model of Barrow holographic
dark energy (BHDE). In particular, we study the evolution of a spatially flat FLRW universe …
dark energy (BHDE). In particular, we study the evolution of a spatially flat FLRW universe …
Observational constraints on sign-changeable interaction models and alleviation of the tension
We investigate various scenarios which include interaction forms between dark matter and
dark energy that exhibit sign reverse, namely where the transfer of energy between the dark …
dark energy that exhibit sign reverse, namely where the transfer of energy between the dark …