Phys. Rev. D 78, 063535 (2008) [6 pages]Is our Universe likely to decay within 20 billion years?Received 8 August 2008; published 19 September 2008 Observations that we are highly unlikely to be vacuum fluctuations suggest that our universe is decaying at a rate faster than the asymptotic volume growth rate, in order that there not be too many observers produced by vacuum fluctuations to make our observations highly atypical. An asymptotic linear e-folding time of roughly 16 Gyr (deduced from current measurements of cosmic acceleration) would then imply that our universe is more likely than not to decay within a time that is less than 19 Gyr in the future. © 2008 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevD.78.063535
DOI:
10.1103/PhysRevD.78.063535
PACS:
98.80.Qc, 04.60.−m, 98.80.Jk
See AlsoSee Also: Don N. Page, Return of the Boltzmann brains, Phys. Rev. D 78, 063536 (2008). |
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