Published July 1, 2004
| Submitted
Journal Article
Open
Entropy bounds and dark energy
- Creators
- Hsu, Stephen D.H.
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.
Additional Information
© 2004 Published by Elsevier B.V. Received 10 March 2004, Revised 29 April 2004, Accepted 3 May 2004, Available online 9 June 2004. The author would like to thank M. Graesser, M. Kamionkowski, B. Murray and M. Wise for comments, and the Caltech theory group for its hospitality. This work was supported in part under DOE contract DE-FG06-85ER40224.Attached Files
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Additional details
- Eprint ID
- 78898
- DOI
- 10.1016/j.physletb.2004.05.020
- Resolver ID
- CaltechAUTHORS:20170710-131412020
- DE-FG06-85ER40224
- Department of Energy (DOE)
- Created
-
2017-07-11Created from EPrint's datestamp field
- Updated
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2021-11-15Created from EPrint's last_modified field