pith. machine review for the scientific record. sign in

arxiv: 1604.08365 · v2 · submitted 2016-04-28 · 🌀 gr-qc · astro-ph.CO· hep-th· quant-ph

Recognition: unknown

Classical and quantum cosmology of the little rip abrupt event

Authors on Pith no claims yet
classification 🌀 gr-qc astro-ph.COhep-thquant-ph
keywords littlequantumanalysisbehaviorclassicalcosmologyequationevent
0
0 comments X
read the original abstract

We analyze from a classical and quantum point of view the behavior of the universe close to a little rip, which can be interpreted as a big rip sent towards the infinite future. Like a big rip singularity, a little rip implies the destruction of all bounded structure in the Universe and is thus an event where quantum effects could be important. We present here a new phantom scalar field model for the little rip. The quantum analysis is performed in quantum geometrodynamics, with the Wheeler-DeWitt equation as its central equation. We find that the little rip can be avoided in the sense of the DeWitt criterion, that is, by having a vanishing wave function at the place of the little rip. Therefore our analysis completes the answer to the question: can quantum cosmology smoothen or avoid the divergent behavior genuinely caused by phantom matter? We show that this can indeed happen for the little rip, similar to the avoidance of a big rip and a little sibling of the big rip.

This paper has not been read by Pith yet.

discussion (0)

Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.