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Modified Gravity and Cosmology: An Update by the CANTATA Network
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Modified Gravity and Cosmology: An Update by the CANTATA Network
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General Relativity and the $\Lambda$CDM framework are currently the standard lore and constitute the concordance paradigm. Nevertheless, long-standing open theoretical issues, as well as possible new observational ones arising from the explosive development of cosmology the last two decades, offer the motivation and lead a large amount of research to be devoted in constructing various extensions and modifications. All extended theories and scenarios are first examined under the light of theoretical consistency, and then are applied to various geometrical backgrounds, such as the cosmological and the spherical symmetric ones. Their predictions at both the background and perturbation levels, and concerning cosmology at early, intermediate and late times, are then confronted with the huge amount of observational data that astrophysics and cosmology are able to offer recently. Theories, scenarios and models that successfully and efficiently pass the above steps are classified as viable and are candidates for the description of Nature. This work is a Review of the recent developments in the fields of gravity and cosmology, presenting the state of the art, high-lighting the open problems, and outlining the directions of future research. Its realization was performed in the framework of the COST European Action ``Cosmology and Astrophysics Network for Theoretical Advances and Training Actions''.
Forward citations
Cited by 44 Pith papers
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First-order thermodynamics of multi-scalar-tensor gravity
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Rotating Black Holes with Primary Scalar Hair: Shadow Signatures in Beyond Horndeski Gravity
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3-dimensional charged black holes in $f({Q})$ gravity
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Degenerate and connection-dependent cosmological sectors in f(Q,C) gravity
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New mechanism for fermion localization in $f(T,T_G)$-brane
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Thermodynamic formulation of Cotton gravity in the Codazzi parametrization
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First-order thermodynamics of multi-scalar-tensor gravity
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Corrections to inflationary models induced by non-minimal coupling between scalar field and curvature
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Modified Cosmology from Mass-to-Horizon Relation: Background Evolution
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An Interplay Between Fractional Calculus and Holographic Dark Energy
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Thermodynamic formulation of Cotton gravity in the Codazzi parametrization
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Accelerating scaling solutions from dark matter particle creation
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Accelerating scaling solutions from dark matter particle creation
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Statistical consistency of sign-switching vacuum energy with cosmological observations
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Hints Beyond $\Lambda$CDM from Barrow and Tsallis Holographic Dark Energy with GO cutoff
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Primordial black hole dark matter from ultra-slow-roll inflation in Horndeski gravity
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Gauge invariant perturbations of $F(T,T_G)$ Cosmology
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Modified Cosmology from Mass-to-Horizon Relation: Background Evolution
Viable generalized horizon entropies from the mass-to-horizon relation are restricted to a narrow neighborhood around the Bekenstein-Hawking law, yielding only Lambda-CDM-like background evolution.
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Observational constraints on teleparallel cubic Galileon cosmologies with quadratic and exponential potentials show viability for late-time acceleration, with the fixed b1 quadratic case competitive under AIC but not BIC.
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Constraints on Kaniadakis Cosmology from Starobinsky Inflation and Primordial Tensor Perturbations
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Unified dark sector and Hubble-tension alleviation in scalar-vector-tensor gravity
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Branch structure and nonextensive thermodynamics of Kalb-Ramond-ModMax black holes: observational signatures
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Fractional-Dimension Gravity and the Milky Way Galaxy
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Study of Cosmic Acceleration of the Universe in the Presence of Bulk Viscous Matter
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The Wave Function of the Universe and Inflation
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The Quintom theory of dark energy after DESI DR2
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Cosmological solutions in $f(Q)$ gravity via Noether symmetry approach
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