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The Cosmological Constant

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Abstract

This is a review of the physics and cosmology of the cosmological constant. Focusing on recent developments, I present a pedagogical overview of cosmology in the presence of a cosmological constant, observational constraints on its magnitude, and the physics of a small (and potentially nonzero) vacuum energy.


Publication:

Living Reviews in Relativity

Pub Date:
December 2001
DOI:

10.12942/lrr-2001-1

10.48550/arXiv.astro-ph/0004075

arXiv:
arXiv:astro-ph/0004075
Bibcode:
2001LRR.....4....1C
Keywords:
  • cosmology;
  • cosmological constant;
  • vacuum energy;
  • Astrophysics;
  • General Relativity and Quantum Cosmology;
  • High Energy Physics - Phenomenology;
  • High Energy Physics - Theory
E-Print:
50 pages. Submitted to Living Reviews in Relativity (http://www.livingreviews.org/), December 1999