Entropy bounds and dark energy

By Stephen Hsu. 2004

778 citations recorded by the source corpus.

Abstract Entropy bounds render quantum corrections to the cosmological constant Λ finite. Under certain assumptions, the natural value of Λ is of order the observed dark energy density ∼10 −10 eV 4 , thereby resolving the cosmological constant problem. We note that the dark energy equation of state in these scenarios is w ≡ p / ρ =0 over cosmological distances, and is strongly disfavored by observational data. Alternatively, Λ in these scenarios might account for the diffuse dark matter component of the cosmological energy density.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/536b8829a7c308d42ebbdf9510ddba2b0482e66c

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In Astronomy and Astrophysics

In Nuclear and High Energy Physics

Citations in the corpus

Viscous Cosmology for Early- and Late-Time Universe (2017, background): “Holographic dark energy [112, 113] is a scenario in the direction of incorporating the nature of dark energy using some basic quantum gravitational principles.”
Categorizing Different Approaches to the Cosmological Constant Problem (2004, background): “since both 〈ρ〉 and s are dominated by ultraviolet modes, (see also [38]).”
Statefinder diagnosis for the interacting model of holographic dark energy (2007, background): “Hsu and Li [19, 20] argued that this energy density could be viewed as the holographic dark energy density”
Constraints on holographic dark energy from the latest supernovae, galaxy clustering, and cosmic microwave background anisotropy observations (2007, background): “[46] S. D. H. Hsu, “Entropy bounds and dark energy,” Phys.”