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Accelerated Universe from Gravity Leaking to Extra Dimensions
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We discuss the idea that the accelerated Universe could be the result of the gravitational leakage into extra dimensions on Hubble distances rather than the consequence of non-zero cosmological constant.
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Cited by 6 Pith papers
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Static Black Holes and Iyer-Wald Entropy in $f(\mathcal{R},\mathcal{K})$ Gravity
In f(R,K) gravity with f=-X^{1-n}, first-order Schwarzschild corrections yield Iyer–Wald entropy S = S_BH + λ Υ_n S_BH^{n+1}.
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Cosmological tensions in Proca-Nuevo theory
Fitting a one-parameter vector-tensor dark energy model to CMB, BAO, and supernova data reduces the Hubble tension to about 1.5–2σ, but the preference over ΛCDM is weak and disappears once full perturbations are included.
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Conformal and pure scale-invariant gravities in d dimensions
For d>4, pure R^{d/2} gravity has no modes on flat space, and five-dimensional conformal gravity propagates three scalar, three vector, and two tensor modes, one of which is a ghost.
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Modification of the laws of gravity in the DGP model by the presence of a second DGP brane
In a two-brane DGP model, the gravitational potential between sources on different branes is controlled by a new scale ρ=√(rc R), producing weaker-than-5D gravity and a distance-independent force for R≪r≪ρ.
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Hubble tension: a short review of theoretical explanations
A comprehensive review finds no theoretical Hubble-tension solution yet passes all consistency tests; new early-dark-energy chains reach high H0 only when the SH0ES calibration is added.
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Dissipative Cosmology and the Nature of Dark Energy: Insights from Bulk Viscosity with DESI DR2 observations
Bulk viscous fluid models for dark energy yield improved fits to supernova, BAO, and CMB data over LambdaCDM, especially in the interacting non-minimal case.
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