• Submit to Entropy Login Register
• MDPI
• Journals A-Z
• For Authors
• For Editors
• About
• Open Access Policy

• Abstract
• Full-Text PDF [314 KB]

• Article Statistics
• Google Scholar
• Order Reprints

• Cite this article
• Export to BibTeX
• Export to EndNote

• [+] on DOAJ
• Ito, Y
• Nojiri, S
• Odintsov, S
• [+] on Google Scholar
• Ito, Y
• Nojiri, S
• Odintsov, S
• [+] on PubMed
• Ito, Y
• Nojiri, S
• Odintsov, S

•  CiteULike
•  Facebook
•  Mendeley
•  Twitter

This article is

• freely available
• re-usable

Entropy 2012, 14(8), 1578-1605; doi:10.3390/e14081578

Article

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

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

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.

Received: 21 July 2012; in revised form: 14 August 2012 / Accepted: 16 August 2012 / Published: 23 August 2012

(This article belongs to the Special Issue Modified Gravity: From Black Holes Entropy to Current Cosmology)

Download PDF Full-Text [314 KB, uploaded 23 August 2012 11:53 CEST]

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.

Keywords: dark energy; scalar tensor theory; little rip

Article Statistics

Cite This Article