Abstract
A diverse set of observations now compellingly suggest that the universe possesses a nonzero cosmological constant. In the context of quantum-field theory a cosmological constant corresponds to the energy density of the vacuum, and the favored value for the cosmological constant corresponds to a very tiny vacuum energy density. We discuss future observational tests for a cosmological constant as well as the fundamental theoretical challenges - and opportunities - that this poses for particle physics and for extending our understanding of the evolution of the universe back to the earliest moments.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1137-1144 |
| Number of pages | 8 |
| Journal | General Relativity and Gravitation |
| Volume | 27 |
| Issue number | 11 |
| DOIs | |
| State | Published - Nov 1995 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Physics and Astronomy(all)
Cite this
The cosmological constant is back. / Krauss, Lawrence; Turner, Michael S.
In: General Relativity and Gravitation, Vol. 27, No. 11, 11.1995, p. 1137-1144.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - The cosmological constant is back
AU - Krauss, Lawrence
AU - Turner, Michael S.
PY - 1995/11
Y1 - 1995/11
N2 - A diverse set of observations now compellingly suggest that the universe possesses a nonzero cosmological constant. In the context of quantum-field theory a cosmological constant corresponds to the energy density of the vacuum, and the favored value for the cosmological constant corresponds to a very tiny vacuum energy density. We discuss future observational tests for a cosmological constant as well as the fundamental theoretical challenges - and opportunities - that this poses for particle physics and for extending our understanding of the evolution of the universe back to the earliest moments.
AB - A diverse set of observations now compellingly suggest that the universe possesses a nonzero cosmological constant. In the context of quantum-field theory a cosmological constant corresponds to the energy density of the vacuum, and the favored value for the cosmological constant corresponds to a very tiny vacuum energy density. We discuss future observational tests for a cosmological constant as well as the fundamental theoretical challenges - and opportunities - that this poses for particle physics and for extending our understanding of the evolution of the universe back to the earliest moments.
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UR - http://www.scopus.com/inward/citedby.url?scp=34249759589&partnerID=8YFLogxK
U2 - 10.1007/BF02108229
DO - 10.1007/BF02108229
M3 - Article
VL - 27
SP - 1137
EP - 1144
JO - General Relativity and Gravitation
JF - General Relativity and Gravitation
SN - 0001-7701
IS - 11
ER -