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arXiv 1608.01764gr-qchep-th
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f(R)引力中的自由度

Propagating degrees of freedom in f(R) gravity

Yun Soo Myung

摘要:

本文计算了$f(R)$引力中闵可夫斯基背景中传播的引力波的偏振模数。这是两个横向无迹张量模式和一个大规模的跟踪模式,这证实了文献中发现的结果。没有无质量呼吸模式,而有质量迹模式对应于里奇标量。在$f(R)$引力中新定义的度规张量满足横截无迹(TT)条件和TT波动方程。

英文摘要:

We have computed the number of polarization modes of gravitational waves propagating in the Minkowski background in $f(R)$ gravity. This is three of two from transverse-traceless tensor modes and one from a massive trace mode, which confirms the results found in the literature. There is no massless breathing mode and the massive trace mode corresponds to the Ricci scalar. A newly defined metric tensor in $f(R)$ gravity satisfies the transverse-traceless (TT) condition as well as the TT wave equation.

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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