The cosmological constant is back

Lawrence Krauss, Michael S. Turner

Research output: Contribution to journalArticle

282 Citations (Scopus)

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 languageEnglish (US)
Pages (from-to)1137-1144
Number of pages8
JournalGeneral Relativity and Gravitation
Volume27
Issue number11
DOIs
StatePublished - Nov 1995
Externally publishedYes

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  • 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 journalArticle

Krauss, Lawrence ; Turner, Michael S. / The cosmological constant is back. In: General Relativity and Gravitation. 1995 ; Vol. 27, No. 11. pp. 1137-1144.
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