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Dynamical Characteristics of a Non-canonical Scalar-Torsion Model of Dark Energy

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Abstract

In this paper, we analyze the phase-space of a model of dark energy in which a non-canonical scalar field (tachyon) non-minimally coupled to torsion scalar in the framework of teleparallelism. Scalar field potential and non-minimal coupling function are chosen as V(ϕ) = V 0 ϕ n and f(ϕ) = ϕ N, respectively. We obtain a critical point that behaves like a stable or saddle point depending on the values of N and n. Additionally we find an unstable critical line. We have shown such a behavior of critical points using numerical computations and phase-space trajectories explicitly.

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Authors and Affiliations

  1. Department of Basic Sciences, Babol University of Technology, Babol, Iran

    A. Banijamali & E. Ghasemi

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  1. A. Banijamali
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  2. E. Ghasemi
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Correspondence to A. Banijamali.

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Banijamali, A., Ghasemi, E. Dynamical Characteristics of a Non-canonical Scalar-Torsion Model of Dark Energy. Int J Theor Phys 55, 3752–3760 (2016). https://doi.org/10.1007/s10773-016-3004-0

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  • DOI: https://doi.org/10.1007/s10773-016-3004-0

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