Stability of accelerating cosmology in two scalar-tensor theory: Little Rip versus de Sitter

We develop the general reconstruction scheme in two scalar model. The quintom-like theory which may describe (different) non-singular Little Rip or de Sitter cosmology is reconstructed. (In)stability of such dark energy cosmologies as well as the flow to fixed points is studied. The stability of Lit...

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Bibliographic Details
Published in:arXiv.org 2012-11
Main Authors: Ito, Yusaku, Nojiri, Shin'ichi, Odintsov, Sergei D
Format: Article
Language:English
Subjects:
Cosmology
Dark energy
Flow stability
Tensors
Universe
Online Access:Get full text
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Summary:We develop the general reconstruction scheme in two scalar model. The quintom-like theory which may describe (different) non-singular Little Rip or de Sitter cosmology is reconstructed. (In)stability of such dark energy cosmologies as well as the flow to fixed points is studied. The stability of Little Rip universe which leads to dissolution of bound objects sometime in future indicates that no classical transition to de Sitter space occurs.
ISSN:2331-8422
DOI:10.48550/arxiv.1111.5389