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On vacuum density, the initial singularity and dark energy · Around

2009

On vacuum density, the initial singularity and dark energy

Carneiro, Saulo, Tavakol, Reza

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Standard cosmology poses a number of important questions.

Apart from its singular origin, it possesses early and late accelerating phases required to account for observations.
The vacuum energy has been considered as a possible way to resolve some of these questions.
The vacuum energy density induced by free fields in an early de Sitter phase has earlier been estimated to be proportional to $H^4$, while more recently it has been suggested that the QCD condensate induces a term proportional to H at late times.

Built on

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Similar

A. A. Starobinsky, Phys. Lett. B 91
1980
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R. Schutzhold, Phys. Rev. Lett. 89
2002
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G. A. Mena Marugán and S. Carneiro, Phys. Rev. D 65
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S. Dodelson, Modern Cosmology (Academic Press, 2003)
2003
Cited alongside, same era.
G. Dvali and M. Turner, astro-ph/0301510
Cited in the paper.

Then

S. Carneiro, Int. J. Mod. Phys. D 15
2006
Later among the works it cites.
S. Carneiro, M. A. Dantas, C. Pigozzo, and J. S. Alcaniz, Phys. Rev. D 77
2008
Later among the works it cites.
H. A. Borges, S. Carneiro, J. C. Fabris, and C. Pigozzo, Phys. Rev. D 77
2008
Later among the works it cites.
F. R. Klinkhamer and G. E. Volovik, Phys. Rev. D 79
2009
Closest in time.

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