\(f(T,\mathcal{T})\) cosmological models in phase space

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• 作者：M. G. Ganiou ; Ines G. Salako ; M. J. S. Houndjo ; J. Tossa
• 关键词：Phase space ; Dark energy ; \(f(T ; \mathcal{T})\) ; gravity
• 刊名：Astrophysics and Space Science
• 出版年：2016
• 出版时间：February 2016
• 年：2016
• 卷：361
• 期：2
• 全文大小：1,302 KB
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• 作者单位：M. G. Ganiou (1)
  Ines G. Salako (1) (2)
  M. J. S. Houndjo (1) (3)
  J. Tossa (1)
  
  1. Institut de Mathématiques et de Sciences Physiques (IMSP), Université de Porto-Novo, 01 BP 613, Porto-Novo, Bénin
  2. Département de Physique, Université d’Agriculture de Kétou, BP 13, Kétou, Bénin
  3. Faculté des Sciences et Techniques de Natitingou (FAST), Université de Natitingou, BP 72, Natitingou, Bénin
  
• 刊物类别：Physics and Astronomy
• 刊物主题：Physics
  Astronomy
  
• 出版者：Springer Netherlands
• ISSN：1572-946X

文摘

In this paper we explore \(f(T, \mathcal{T})\), where \(T\) and \(\mathcal {T}\) denote the torsion scalar and the trace of the energy-momentum tensor respectively. We impose the covariant conservation to the energy-momentum tensor and obtain a cosmological \(f(T, \mathcal{T})\) respectively. We impose the covariant conservation to the energy-momentum tensor and obtain a cosmological \(f(T, \mathcal{T})\) model. Then, we study the stability of the obtained model for power-law and de Sitter solutions and our result show that the model can be stable for some values of the input parameters, for both power-law and de Sitter solutions.