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arXiv 1001.4149gr-qc
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(R +- μ^4/R)引力的静态球对称解

Static Spherically Symmetric Solution of (R +- μ^4/R) Gravity

Kh. Saaidi, A. Vaji, A. Aghamomammadi

摘要:

研究了f(R)引力(R +- μ^4/R)模型的静态球对称解。当μ趋于零时,我们得到了太阳系中的时空度规,它可以简化为史瓦西度规。对于所得到的度规,与爱因斯坦引力的偏差非常小。这一结果不同于以往用f(R)引力与标量张量理论等价的结果。同时还表明,太阳系的真空解取决于物质分布的形状,而这与爱因斯坦引力不同。

英文摘要:

The static spherically symmetric solution for (R +- μ^4/R) model of f(R)gravity is investigated. We obtain the metric for space-time in the solar system that reduces to the Schwarzschild metric, when μ tends to zero. For the obtained metric, the deviation from Einstein gravity is very small. This result is different from the other results have been obtained by equivalence between f(R) gravity and scalar tensor theory. Also it is shown that the vacuum solution in the solar system depends on the shape of matter distribution which differ from the Einstein's gravity.

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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