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arXiv · gr-qc/0003043

Indications of causal set cosmology

Rafael D. Sorkin
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Abstract

Within the context of a recently proposed family of stochastic dynamical laws for causal sets, one can ask whether the universe might have emerged from the quantum-gravity era with a large enough size and with sufficient homogeneity to explain its present-day large-scale structure. In general, such a scenario would be expected to require the introduction of very large or very small fundamental parameters into the theory. However, there are indications that such ``fine tuning'' is not necessary, and a large homogeneous and isotropic cosmos can emerge naturally, thanks to the action of a kind of renormalization group associated with cosmic cycles of expansion and re-contraction.

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Rafael D. Sorkin. 2001-11-30. Indications of causal set cosmology. https://doi.org/10.1023/a%3A1003629312096

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