Cyclic Universe and Infinite Past

Details Cyclic Universe and Infinite Past Cyclic Universe and Infinite Past

2007-05-18

arxiv.org/abs/0705.2730v2

Mod.Phys.Lett.A22:2587-2592,2007

Astronomy and Astrophysics

Astrophysics

7 pages. Clarification in discussion of infinite past

Scientific paper

10.1142/S0217732307025698

We address two questions about the past for infinitely cyclic cosmology. The first is whether it can contain an infinite length null geodesic into the past in view of the Borde-Guth-Vilenkin (BGV) "no-go" theorem, The second is whether, given that a small fraction of spawned universes fail to cycle, there is an adequate probability for a successful universe after an infinite time. We give positive answers to both questions then show that in infinite cyclicity the total number of universes has been infinite for an arbitrarily long time.

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