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arXiv 2005.10697gr-qchep-th
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重力修正对静力球形结构复杂因子的影响

Influence of Modification of Gravity on the Complexity Factor of Static Spherical Structures

Z. Yousaf, Maxim Yu. Khlopov, M. Z. Bhatti, T. Naseer

摘要:

本文的目的是推广$f(R,T,Q)$引力理论中静态自引力结构的复杂性定义,其中$R$是Ricci标量,$T$是能量动量张量的迹部分,$Q\equiv R_{αβ}T^{αβ}$.在这方面,我们考虑了局部各向异性的球形物质分布和计算场方程和守恒律。在对黎曼曲率张量进行正交分裂后,利用结构标量求出了相应的复杂度因子。可以看出,如果能量密度不均匀性和压力各向异性的影响相互抵消,系统可能具有零复杂性因子。在假设$f(R,T,Q)=R$条件下,所有结果都归结为广义相对论.

英文摘要:

The aim of this paper is to generalize the definition of complexity for the static self-gravitating structure in $f(R,T,Q)$ gravitational theory, where $R$ is the Ricci scalar, $T$ is the trace part of energy momentum tensor and $Q\equiv R_{αβ}T^{αβ}$. In this context, we have considered locally anisotropic spherical matter distribution and calculated field equations and conservation laws. After the orthogonal splitting of the Riemann curvature tensor, we found the corresponding complexity factor with the help of structure scalars. It is seen that the system may have zero complexity factor if the effects of energy density inhomogeneity and pressure anisotropy cancel the effects of each other. All of our results reduce to general relativity on assuming $f(R,T,Q)=R$ condition.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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