Cosmological evolution of generalized ghost pilgrim dark energy in \(f(T)\) gravity

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• 作者：M. Sharif ; Kanwal Nazir
• 关键词：f ( T ) $f(T)$ gravity ; Pilgrim dark energy ; Cosmological parameters
• 刊名：Astrophysics and Space Science
• 出版年：2015
• 出版时间：December 2015
• 年：2015
• 卷：360
• 期：2
• 全文大小：882 KB
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• 作者单位：M. Sharif (1)
  Kanwal Nazir (2)
  
  1. Department of Mathematics, University of the Punjab, Quaid-e-Azam Campus, Lahore, 54590, Pakistan
  2. Department of Mathematics, Lahore College for Women University, Lahore, 54000, Pakistan
  
• 刊物类别：Physics and Astronomy
• 刊物主题：Physics
  Astronomy
  
• 出版者：Springer Netherlands
• ISSN：1572-946X

文摘

We explore the phenomenon that phantom-like dark energy prevents the formation of black holes by assuming the generalized ghost version of pilgrim dark energy in the background of generalized teleparallel gravity. In this scenario, we construct \(f(T)\) model for explaining the evolutionary behavior of equation of state parameter, \(\omega_{\varLambda}-\omega'_{\varLambda}\) and \(r-s\) planes. We discuss these cosmological parameters graphically by taking different values of redshift parameter and pilgrim dark energy parameter. It is found that the equation of state parameter shows phantom like behavior while \(\omega_{\varLambda}-\omega'_{\varLambda}\) plane possesses thawing region for some particular values of pilgrim dark energy parameter. The statefinder parameters in \(r-s\) plane indicate the behavior of quintessence and phantom models. Finally, we discuss the first and second laws of thermodynamics and investigate the behavior of entropy production term. Keywords \(f(T)\) gravity Pilgrim dark energy Cosmological parameters