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arXiv 1304.4089gr-qchep-th
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一个指数F(R)暗能量模型

An Exponential F(R) Dark Energy Model

V. K. Oikonomou

摘要:

在Jordan和Einstein坐标系下提出了一个指数型$F(R)$修正引力模型。我们使用一个通用的方法,以调查和证明模型的可行性。除了一般的功能,这个模型,这实际上使它可行的第一步,我们解决的问题,有限时间奇点,牛顿定律的修正和标量质量。正如我们将证明的那样,该模型成功地通过了后两个测试,并且也没有有限时间奇点,这是其他研究良好的指数模型所固有的特征。

英文摘要:

We present an exponential $F(R)$ modified gravity model in the Jordan and the Einstein frame. We use a general approach in order to investigate and demonstrate the viability of the model. Apart from the general features that this models has, which actually render it viable at a first step, we address the issues of finite time singularities, Newton's law corrections and the scalaron mass. As we will evince, the model passes these latter two tests successfully and also has no finite time singularities, a feature inherent to other well studied exponential models.

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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