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arXiv 0705.1669gr-qchep-th
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Einstein +非多项式引力的球对称解

Spherically symmetric solutions of Einstein + non-polynomial gravities

S. Deser, O. Sarioglu, B. Tekin

摘要:

我们得到了一类引力模型的静态球对称解,这些引力模型在广义相对论(GR)作用量下的加和禁止了Ricci平坦,特别是Schwarzschild几何.选择这些理论是为了保持史瓦西规范中爱因斯坦方程的(一)阶导数。一般来说,除了一个完全禁止球对称的模型外,这些解在原点处既有视界又有奇点。我们还考虑了具有宇宙学常数、Maxwell源项和Gauss-Bonnet项的任意维扩展。

英文摘要:

We obtain the static spherically symmetric solutions of a class of gravitational models whose additions to the General Relativity (GR) action forbid Ricci-flat, in particular, Schwarzschild geometries. These theories are selected to maintain the (first) derivative order of the Einstein equations in Schwarzschild gauge. Generically, the solutions exhibit both horizons and a singularity at the origin, except for one model that forbids spherical symmetry altogether. Extensions to arbitrary dimension with a cosmological constant, Maxwell source and Gauss-Bonnet terms are also considered.

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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