Is the cosmological 'constant' a nonlocal quantum residue of discreteness of the causal set type? - INSPIRE

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

Rafael D. Sorkin
(
- Perimeter Inst. Theor. Phys. and
- Syracuse U.
)

Oct, 2007

13 pages

Part of Proceedings on 13th International Symposium on Particles, strings, and cosmology (PASCOS 2007) : London, UK, July 2-7, 2007, 142-153

Published in:

AIP Conf.Proc. 957 (2007) 1, 142-153

Contribution to:

- PASCOS 2007
, 142-153

Published: Nov 26, 2007

e-Print:

0710.1675 [gr-qc]

DOI:

10.1063/1.2823750

View in:

ADS Abstract Service

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Abstract: (AIP)

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.

04.40.Nr
98.80.Es
02.10.Ab
cosmology
Einstein field equations
cluster emission model
set theory

References(15)

Figures(0)

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