论文标题
(2+1) - 维度F(R)重力中的薄壳
Thin shells in (2+1)-dimensional F(R) gravity
论文作者
论文摘要
我们在(2+1) - 维f(r)具有恒定标态曲率的重力理论中研究物质的薄壳。我们考虑具有圆形对称性的宽类空间,其中薄壳与外部区域与外部区域相连。我们分析了径向扰动下静态构型的稳定性。作为空间渐近抗DE保姆的例子,我们提出了一个带电的气泡和一个带电的薄壳,周围是一个非电荷黑洞。在这两种情况下,我们都表明,对于参数的合适值都可以找到稳定的解决方案。
We study thin shells of matter in (2+1)-dimensional F(R) theories of gravity with constant scalar curvature R. We consider a wide class of spacetimes with circular symmetry, in which a thin shell joins an inner region with an outer one. We analyze the stability of the static configurations under radial perturbations. As examples of spacetimes asymptotically anti-de Sitter, we present a charged bubble and a charged thin shell surrounding a non-charged black hole. In both cases, we show that stable solutions can be found for suitable values of the parameters.