探索远距平行引力 $f(T)$ 中的宇宙学演化和约束条件

M. Koussour, A. Altaibayeva, S. Bekov, F. Holmurodov, S. Muminov, J. Rayimbaev
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引用次数: 0

摘要

本研究在广义相对论框架内探索了远距平行引力的扩展,引入了依赖于扭转标量 $T$ 的代数函数 $f(T)$。受远距平行公式的启发,我们利用暗能量状态方程的简单参数化,研究了它对宇宙学的影响。我们选择的$f(T)$函数($f(T)=\alpha(-T)^n$)受到了近期观测数据($H(z)$、SNeIa、BAO和CMB)的严格约束。该模型与宇宙动力学非常吻合,表现出五重行为。减速参数的演化、暗能量成分的行为和$Om(z)$诊断进一步揭示了引人入胜的宇宙学现象,强调了该模型与五子场景的兼容性。
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Exploring cosmological evolution and constraints in $f(T)$ teleparallel gravity
This study explores the extension of teleparallel gravity within the framework of general relativity, introducing an algebraic function $f(T)$ dependent on the torsion scalar $T$. Motivated by the teleparallel formulation, we investigate cosmological implications, employing the simplest parametrization of the dark energy equation of state. Our chosen $f(T)$ function, $f(T)=\alpha(-T)^n$, undergoes stringent constraints using recent observational data ($H(z)$, SNeIa, BAO, and CMB). The model aligns well with cosmic dynamics, exhibiting quintessence behavior. The evolution of the deceleration parameter, the behavior of dark energy components, and the $Om(z)$ diagnostic further reveal intriguing cosmological phenomena, emphasizing the model's compatibility with quintessence scenarios.
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