论文标题
无go定理用于RICCI分流重力
No-go theorem for inflation in Ricci-inverse gravity
论文作者
论文摘要
我们研究了最新提出的Ricci Inters Reverity，这是一种非常新颖的四阶重力类型。特别是，我们能够在各向同性和各向异性上易于膨胀到该模型。更有趣的是，这些解决方案没有奇异性问题。但是，基于动力学系统方法的稳定性分析表明，该模型的各向同性和各向异性通胀均与现场扰动相对不稳定。该结果暗示了Ricci倾向重力中各向同性和各向异性通胀的无关定理。
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.
