REVIEW 1 cited by
Accelerating expansion and change of signature
Not yet reviewed by Pith; the record is open.
This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.
SPECIMEN: schema-true, not a live event
T0 review · schema-true
One-sentence machine reading of the paper's core claim.
pith:XXXXXXXX · record.json · timestamp
abstract
We show that some types of sudden singularities admit a natural explanation in terms of regular changes of signature on brane-worlds in AdS$_{5}$. The present accelerated expansion of the Universe and its possible ending at a sudden singularity may therefore simply be an indication that our braneworld is about to change its Lorentzian signature to an Euclidean one, while remaining fully regular. An explicit example of this behaviour satisfying the weak and strong energy conditions is presented.
Forward citations
Cited by 1 Pith paper
-
Inflation from Covariant Signature Change: A Geometric Mechanism
A covariant signature-change layer between a Euclidean cap and a Lorentzian universe acts as a geometric, inflaton-free fluid that accelerates expansion while the interpolator slope exceeds a curvature-dependent threshold.
Discussion (0). Continue with ORCID to comment.