Dynamical system analysis for a phantom model

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• 作者：Nilanjana Mahata (1)
  Subenoy Chakraborty (1)
  
• 关键词：Phantom dark energy field ; Equilibrium point ; Stability
• 刊名：General Relativity and Gravitation
• 出版年：2014
• 出版时间：May 2014
• 年：2014
• 卷：46
• 期：5
• 全文大小：471 KB
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• 作者单位：Nilanjana Mahata (1)
  Subenoy Chakraborty (1)
  
  1. Department of Mathematics, Jadavpur University, Kolkata, 700032, West Bengal, India
  
• ISSN：1572-9532

文摘

The paper deals with a dynamical system analysis related to phantom cosmological model. Here gravity is coupled to phantom scalar field having scalar coupling function and a potential. The field equations are reduced to an autonomous dynamical system by a suitable redefinition of the basic variables and assuming some suitable form of the potential function. Finally, critical points are evaluated, their nature have been analyzed and corresponding cosmological scenario has been discussed.