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arXiv 1102.3863gr-qc
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电磁场与引力的非最小$\ln(R)F^2$耦合:静态球对称解

Non-minimal $\ln(R)F^2$ Couplings of Electromagnetic Fields to Gravity: Static, Spherically Symmetric Solutions

Tekin Dereli, Özcan Sert

摘要:

我们通过曲率标量的自然对数来研究电磁场和引力之间的非最小耦合。在给出非最小耦合理论的拉格朗日公式后,我们利用一阶变分原理,利用拉格朗日乘子法导出了场方程。我们看静态的,球对称的解决方案是渐近平坦的。根据参数$R_0 $和$a_1$的不同取值,讨论了某些候选黑洞解的视界性质.

英文摘要:

We investigate the non-minimal couplings between the electromagnetic fields and gravity through the natural logarithm of the curvature scalar. After we give the Lagrangian formulation of the non-minimally coupled theory, we derive field equations by a first order variational principle using the method of Lagrange multipliers. We look at static, spherically symmetric solutions that are asymptotically flat. We discuss the nature of horizons for some candidate black hole solutions according to various values of the parameters $R_0 $ and $a_1$.

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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