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arXiv 2010.02161gr-qcastro-ph.SR
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Schwarzschild几何的广义遥平行修正

General Teleparallel Modifications of Schwarzschild Geometry

Sebastian Bahamonde, Christian Pfeifer

摘要:

引力的遥平行理论是用度规的四元组和有挠率的平面联系来描述的。在本文中,我们研究了球对称在一个修改的远程平行引力理论,这是基于一个任意函数的五个可能的标量构造的挠率的不可约部分。这个理论是所谓的新广义相对论的推广。我们发现,只有两个标量是不同的球对称为零,我们解决了相应的场方程解析共形Teleparel引力,然后微扰周围Schwarzschild几何的一般微扰理论周围GR。最后,我们计算的光子球,近日点位移,夏皮罗延迟,和光偏转的扰动解决方案,如唯象效应。我们发现他们相应的校正标准GR的贡献和他们对三个模型参数的依赖。

英文摘要:

Teleparallel theories of gravity are described in terms of the tetrad of a metric and a flat connection with torsion. In this paper, we study spherical symmetry in a modified teleparallel theory of gravity which is based on an arbitrary function of the five possible scalars constructed from the irreducible parts of torsion. This theory is a generalisation of the so-called New General Relativity theory. We find that only two scalars are different to zero in spherical symmetry and we solve the corresponding field equations analytically for conformal Teleparallel gravity, and then perturbatively around Schwarzschild geometry for the general perturbative theory around GR. Finally, we compute phenomenological effects from the perturbed solutions such as the photon sphere, perihelion shift, Shapiro delay, and the light deflection. We find their correspondent correction to the standard GR contribution and their dependence on the three model parameters.

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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