Stability of Accelerating Cosmology in Two Scalar-Tensor Theory: Little Rip versus de SitterReport as inadecuate


Stability of Accelerating Cosmology in Two Scalar-Tensor Theory: Little Rip versus de Sitter


Stability of Accelerating Cosmology in Two Scalar-Tensor Theory: Little Rip versus de Sitter - Download this document for free, or read online. Document in PDF available to download.

1

Department of Physics, Nagoya University, Nagoya 464-8602, Japan

2

Kobayashi-Maskawa Institute for the Origin of Particles and the Universe, Nagoya University, Nagoya 464-8602, Japan

3

Instituciò Catalana de Recerca i Estudis Avançats ICREA and Institut de Ciencies de l’Espai IEEC-CSIC, Campus UAB, Facultat de Ciencies, Torre C5-Par-2a pl, E-08193 Bellaterra Barcelona, Spain

4

Tomsk State Pedagogical University, 634041, Tomsk, Russia





*

Author to whom correspondence should be addressed.



Abstract 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. The number of scalar phantom dark energy models with Little Rip cosmology or asymptotically de Sitter evolution is presented. Stability issue of such dark energy cosmologies as well as the flow to fixed points are 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. The possibility of unification of inflation with Little Rip dark energy in two scalar theory is briefly mentioned. View Full-Text

Keywords: dark energy; scalar tensor theory; little rip dark energy; scalar tensor theory; little rip





Author: Yusaku Ito 1, Shin’ichi Nojiri 1,2,* and Sergei D. Odintsov 3,4

Source: http://mdpi.com/



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