f(T) models with phantom divide line crossing

f(T) models with phantom divide line crossing

In this paper, we propose two new models in f ( T ) gravity to realize the crossing of the phantom divide line for the effective equation of state, and we then study the observational constraints on the model parameters. The best fit results suggest that the observations favor a crossing of the phan...

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Veröffentlicht in:The European physical journal. C, Particles and fields Particles and fields, 2011-02, Vol.71 (2), p.1-6, Article 1552
Hauptverfasser: Wu, Puxun, Yu, Hongwei
Format: Artikel
Sprache:eng
Schlagworte:
Astronomy
Astrophysics and Cosmology
Constraint modelling
Elementary Particles
Equations of state
Exact sciences and technology
Gravitation
Hadrons
Heavy Ions
Mathematical models
Measurement Science and Instrumentation
Nuclear Energy
Nuclear Physics
Physics
Physics and Astronomy
Quantum Field Theories
Quantum Field Theory
Regular Article - Theoretical Physics
String Theory
The physics of elementary particles and fields
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Beschreibung
Zusammenfassung:In this paper, we propose two new models in f ( T ) gravity to realize the crossing of the phantom divide line for the effective equation of state, and we then study the observational constraints on the model parameters. The best fit results suggest that the observations favor a crossing of the phantom divide line.
ISSN:1434-6044
1434-6052
DOI:10.1140/epjc/s10052-011-1552-2