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The Cosmological constant is back

Journal Article · · Gen.Rel.Grav.
DOI:https://doi.org/10.1007/BF02108229· OSTI ID:1884545
 [1];  [2]
  1. Case Western Reserve U.
  2. Chicago U., Astron. Astrophys. Ctr.; Chicago U., EFI; Fermilab
+ Show Author Affiliations
A diverse set of observations now compellingly suggest that 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 wanted 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.
Research Organization:
Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
DOE Contract Number:
AC02-07CH11359
OSTI ID:
1884545
Report Number(s):
CWRU-P6-95; FERMILAB-PUB-95-063-A; arXiv:astro-ph/9504003; oai:inspirehep.net:393978
Journal Information:
Gen.Rel.Grav., Journal Name: Gen.Rel.Grav. Vol. 27
Country of Publication:
United States
Language:
English

References (12)

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Angular diameters as a probe of a cosmological constant and Omega journal March 1993
Why there is nothing rather than something: A theory of the cosmological constant journal December 1988
Gravitational lensing frequencies: galaxy cross-sections and selection effects journal November 1991
The cosmological constant problem journal January 1989
A critical review of selected techniques for measuring extragalactic distances journal August 1992
Big-bang nucleosynthesis and the baryon density of the universe journal January 1995
Anisotropies in the Cosmic Microwave Background journal September 1994
Flatness of the Universe: Reconciling Theoretical Prejudices with Observational Data journal June 1984
An independent method for determining the age of the universe journal April 1987

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Related Subjects

79 ASTRONOMY AND ASTROPHYSICS