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arXiv 1301.2190gr-qc
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由f(R)修正引力重建宇宙加速度

Reconstructing cosmic acceleration from f(R) modified gravity

Antonio Jesús López-Revelles

摘要:

针对$f(R)$引力场,发展了加速宇宙学重建程序的一个变体.重建方案的e-折叠和使用辅助标量场的开发。在这两个方案中明确讨论了一个例子的模型与瞬态幻影行为没有真正的问题。对两种改造方案进行了详细的比较。它似乎支持两个框架的物理不等价性。

英文摘要:

A variant of the accelerating cosmology reconstruction program is developed for $f(R)$ gravity. Reconstruction schemes in terms of e-foldings and by using an auxiliary scalar field are developed. An example of a model with a transient phantom behavior without real matter is explicitly discussed in both schemes. Detailed comparison of the two schemes of reconstruction is presented. It seems to support physical non-equivalence of the two frames.

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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