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10.1103/PhysRevD.88.084033.

Authors :
Karami, K.
Asadzadeh, S.
Abdolmaleki, A.
Safari, Z.
Source :
Physical Review D: Particles, Fields, Gravitation & Cosmology. Oct2013, Vol. 88 Issue 8-B, p1-12. 12p.
Publication Year :
2013

Abstract

Using the correspondence between the f(T)-gravity model and the holographic dark energy model with the power-law entropy correction, we reconstruct the holographic f(T)-gravity model with the power-law entropy correction. We fit the model parameters by using the latest observational data including type la supernovae, baryon acoustic oscillations, cosmic microwave background, and Hubble parameter data. We also check the viability of our model using a cosmographie analysis approach. Using the best-fit values of the model, we obtain the evolutionary behavior of the effective torsion equation-of-state parameter of the power-law entropy-corrected holographic f(T)-gravity model, as well as the deceleration parameter of the Universe. We also investigate different energy conditions in our model. Furthermore, we examine the validity of the generalized second law of gravitational thermodynamics. Finally, we point out the growth rate of the matter density perturbation in our model. We conclude that in the power-law entropy-corrected holographic f(T)-gravity model, the Universe begins a matter-dominated phase and approaches a de Sitter regime at late times, as expected. It also can justify the transition from the quintessence state to the phantom regime in the near past, as indicated by recent observations. Moreover, this model is consistent with current data, it passes the cosmographie test, and it fits the data of the growth factor as well as the ACDM model. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
24700010
Volume :
88
Issue :
8-B
Database :
Academic Search Index
Journal :
Physical Review D: Particles, Fields, Gravitation & Cosmology
Publication Type :
Periodical
Accession number :
93253656
Full Text :
https://doi.org/10.1103/PhysRevD.88.084034