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Research PapersNo Access

VISCOUS DARK ENERGY IN f(T) GRAVITY

Department of Mathematics, University of the Punjab, Quaid-e-Azam Campus, Lahore-54590, Pakistan

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and

Department of Mathematics, University of the Punjab, Quaid-e-Azam Campus, Lahore-54590, Pakistan

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https://doi.org/10.1142/S0217732313501186Cited by:24 (Source: Crossref)

Abstract

We study the bulk viscosity taking dust matter in the generalized teleparallel gravity. We consider different dark energy (DE) models in this scenario along with a time-dependent viscous model to construct the viscous equation of state (EoS) parameter for these DE models. We discuss the graphical representation of this parameter to investigate the viscosity effects on the accelerating expansion of the universe. It is mentioned here that the behavior of the universe depends upon the viscous coefficients showing the transition from decelerating to accelerating phase. It leads to the crossing of phantom divide line and becomes phantom dominated for specific ranges of these coefficients.

Keywords:

PACS: 04.50.kd, 95.36.+x, 98.80.-k

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Journal cover image

Vol. 28, No. 27

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History

Received 15 June 2013

Revised 3 July 2013

Accepted 4 July 2013

Published: 14 August 2013

Keywords