自我创造理论中Frw型Kaluza-Klein Mhrde宇宙学模型的动力学

IF 0.4 Q4 MATHEMATICS
T. Vinutha, K. S. Sri Kavya
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引用次数: 1

摘要

本研究在Barber自我创造理论的框架下,研究了充满无压物质和修正全息Ricci暗能量的friedman - robertson - walker型Kaluza-Klein宇宙。在求解场方程时,考虑了平均尺度因子的混合展开律。我们还研究了开放、平坦和封闭模型之间的差异。我们计算了一些物理性质,如减速参数(q), EoS参数(ωde),空间体积(V),膨胀标量(θ)。还讨论了定位仪参数(r, s)和ωde - ωde平面的物理和几何方面。在ω de−ω de平面讨论中,我们观察到平面模型位于冻结区,封闭模型位于解冻区。此外,我们还观察到,对于平面模型,ωde穿过幻相分割线(即ωde = -1),并显示出类似琴的行为。在三种模式中,平面模式与近期观测资料吻合较好。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Dynamics Of Frw Type Kaluza-Klein Mhrde Cosmological Model In Self-Creation Theory
ABSTRACT In this work, we have studied Friedmann–Robertson–Walker type Kaluza–Klein universe filled with pressureless matter and modified holographic Ricci dark energy in the frame work of Barber’s self-creation theory. While solving field equations we have considered hybrid expansion law of average scale factor. Also we have studied differences between open, flat and closed models. We have calculated some physical properties such as deceleration parameter(q), EoS parameter(ωde ), spatial volume(V ), expansion scalar(θ). The physical and geometrical aspects of the statefinder parameters(r, s) and ωde − ω ′ de plane are also discussed. In ω de− ω ′ de plane discussion we have observed that the flat model lies in freezing region and the closed model lies in thawing region. Also we have observed that for flat model ωde crosses the phantom divide line( i.e. ωde = -1) and shows quintom like behavior. Among the three models the flat model is in good agreement with recent observational data.
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