Multiple ΛCDM cosmology with string landscape features and future singularities

E. Elizalde; A. N. Makarenko; S. Nojiri; V. V. Obukhov; S. D. Odintsov

doi:10.1007/s10509-012-1339-4

Multiple ΛCDM cosmology with string landscape features and future singularities

E. Elizalde, A. N. Makarenko, S. Nojiri, V. V. Obukhov, S. D. Odintsov

Research output: Contribution to journal › Article › Research › peer-review

4 Citations (Scopus)

Abstract

Multiple ΛCDM cosmology is studied in a way that is formally a classical analog of the Casimir effect. Such cosmology corresponds to a time-dependent dark fluid model or, alternatively, to its scalar field presentation, and it motivated by the string landscape picture. The future evolution of the several dark energy models constructed within the scheme is carefully investigated. It turns out to be almost always possible to choose the parameters in the models so that they match the most recent and accurate astronomical values. To this end, several universes are presented which mimic (multiple) ΛCDM cosmology but exhibit Little Rip, asymptotically de Sitter, or Type I, II, III, and IV finite-time singularity behavior in the far future, with disintegration of all bound objects in the cases of Big Rip, Little Rip and Pseudo-Rip cosmologies. © 2012 Springer Science+Business Media Dordrecht.

Original language	English
Pages (from-to)	479-488
Journal	Astrophysics and Space Science
Volume	344
Issue number	2
DOIs	https://doi.org/10.1007/s10509-012-1339-4
Publication status	Published - 1 Apr 2013

Keywords

Dark energy
Finite future singularity

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title = "Multiple ΛCDM cosmology with string landscape features and future singularities",

abstract = "Multiple ΛCDM cosmology is studied in a way that is formally a classical analog of the Casimir effect. Such cosmology corresponds to a time-dependent dark fluid model or, alternatively, to its scalar field presentation, and it motivated by the string landscape picture. The future evolution of the several dark energy models constructed within the scheme is carefully investigated. It turns out to be almost always possible to choose the parameters in the models so that they match the most recent and accurate astronomical values. To this end, several universes are presented which mimic (multiple) ΛCDM cosmology but exhibit Little Rip, asymptotically de Sitter, or Type I, II, III, and IV finite-time singularity behavior in the far future, with disintegration of all bound objects in the cases of Big Rip, Little Rip and Pseudo-Rip cosmologies. {\textcopyright} 2012 Springer Science+Business Media Dordrecht.",

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author = "E. Elizalde and Makarenko, {A. N.} and S. Nojiri and Obukhov, {V. V.} and Odintsov, {S. D.}",

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T1 - Multiple ΛCDM cosmology with string landscape features and future singularities

AU - Elizalde, E.

AU - Makarenko, A. N.

AU - Nojiri, S.

AU - Obukhov, V. V.

AU - Odintsov, S. D.

PY - 2013/4/1

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N2 - Multiple ΛCDM cosmology is studied in a way that is formally a classical analog of the Casimir effect. Such cosmology corresponds to a time-dependent dark fluid model or, alternatively, to its scalar field presentation, and it motivated by the string landscape picture. The future evolution of the several dark energy models constructed within the scheme is carefully investigated. It turns out to be almost always possible to choose the parameters in the models so that they match the most recent and accurate astronomical values. To this end, several universes are presented which mimic (multiple) ΛCDM cosmology but exhibit Little Rip, asymptotically de Sitter, or Type I, II, III, and IV finite-time singularity behavior in the far future, with disintegration of all bound objects in the cases of Big Rip, Little Rip and Pseudo-Rip cosmologies. © 2012 Springer Science+Business Media Dordrecht.

AB - Multiple ΛCDM cosmology is studied in a way that is formally a classical analog of the Casimir effect. Such cosmology corresponds to a time-dependent dark fluid model or, alternatively, to its scalar field presentation, and it motivated by the string landscape picture. The future evolution of the several dark energy models constructed within the scheme is carefully investigated. It turns out to be almost always possible to choose the parameters in the models so that they match the most recent and accurate astronomical values. To this end, several universes are presented which mimic (multiple) ΛCDM cosmology but exhibit Little Rip, asymptotically de Sitter, or Type I, II, III, and IV finite-time singularity behavior in the far future, with disintegration of all bound objects in the cases of Big Rip, Little Rip and Pseudo-Rip cosmologies. © 2012 Springer Science+Business Media Dordrecht.

KW - Dark energy

KW - Finite future singularity

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