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arXiv 2009.06306gr-qcastro-ph.CO
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Ricci逆引力中暴胀的不通过定理

No-go theorem for inflation in Ricci-inverse gravity

Tuan Q. Do

摘要:

我们研究了最近提出的Ricci逆引力,这是一种非常新颖的四阶引力。特别是,我们能够根据这个模型计算出各向同性和各向异性膨胀的宇宙。更有趣的是,这些解没有奇点问题。然而,基于动力系统方法的稳定性分析表明,各向同性和各向异性膨胀的这个模型是不稳定的场扰动。这一结果意味着在Ricci逆引力中各向同性和各向异性暴胀都是不可行的。

英文摘要:

We study a recent proposed Ricci-inverse gravity, which is a very novel type of fourth-order gravity. In particular, we are able to figure out both isotropically and anisotropically inflating universes to this model. More interestingly, these solutions are free from a singularity problem. However, stability analysis based on the dynamical system method shows that both isotropic and anisotropic inflation of this model turn out to be unstable against field perturbations. This result implies a no-go theorem for both isotropic and anisotropic inflation in the Ricci-inverse 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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