Is the cosmological "constant" a nonlocal quantum residue of discreteness of the causal set type?

Details Is the cosmological "constant" a nonlocal quantum residue of discreteness of the causal set type? Is the cosmological "constant" a nonlocal quantum residue of discreteness of the causal set type?

2007-10-09

arxiv.org/abs/0710.1675v1

AIPConf.Proc.957:142-153,2007

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

plainTeX, 13 pages. To appear in the proceedings of the PASCOS-07 Conference, held July, 2007, London, England. Most current v

Scientific paper

10.1063/1.2823750

The evidence for an accelerating Hubble expansion appears to have confirmed the heuristic prediction, from causal set theory, of a fluctuating and ``ever-present'' cosmological term in the Einstein equations. A more concrete phenomenological model incorporating this prediction has been devised and tested, but it remains incomplete. I will review these developments and also mention a possible consequence for the dimensionality of spacetime.

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