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

Rafael D. Sorkin

doi:10.1063/1.2823750

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arXiv · 0710.1675

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

Rafael D. Sorkin

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Abstract

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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Rafael D. Sorkin. 2007-10-09. Is the cosmological "constant" a nonlocal quantum residue of discreteness of the causal set type?. https://doi.org/10.1063/1.2823750

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