Joshi, P. S. ; Padmanabhan, T. ; Chitre, S. M. (1987) Bounds on vacuum energy density in a general cosmological scenario Physics Letters A, 120 (3). pp. 115-118. ISSN 0375-9601
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/037596...
Related URL: http://dx.doi.org/10.1016/0375-9601(87)90709-2
Abstract
General limits on the cosmological constant (or equivalently the vacuum energy density) are derived for an inflationary universe. This is accomplished under the general assumption of global hyperbolicity and without the use of any special properties like spherical symmetry or homogeneity of the underlying spacetime. A clear upper limit of 1/3 is obtained for the vacuum energy density parameter Ov, while the lower limit is found to depend on the age of the oldest object in the universe.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 5830 |
| Deposited On: | 19 Oct 2010 10:41 |
| Last Modified: | 31 May 2011 07:12 |
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