论文标题
追踪高斯 - 骨网的宇宙历史
Tracing the cosmic history by Gauss-Bonnet gravity
论文作者
论文摘要
考虑到引力作用内部的进一步曲率贡献，可以追溯到宇宙历史。假设标准的一般相对性可以通过其他曲率不变性扩展，我们将讨论包含高阶曲率项的动作原则上适合整个宇宙进化的可能性。特别是，$ f（r，{\ cal g}）$之类的理论，带有$ r $ ricci标量和$ \ cal g $ the高斯 - 骨网拓扑术语，包含所有曲率不变性，取决于能源制度，可以解决通货膨胀，物质占主导地位和深色能源制度。在本文中，考虑到$ f（r，{\ cal g}）$模型如何使重力从紫外线到红外尺度导致重力。具体来说，为此，我们将考虑一种掌握方法。
Cosmic history can be traced considering further curvature contributions inside the gravitational action. Assuming that standard General Relativity can be extended by other curvature invariants, we discuss the possibility that an action containing higher-order curvature terms can fit, in principle, the whole universe evolution. In particular, a theory like $F(R,{\cal G})$, with $R$ the Ricci scalar and $\cal G$ the Gauss-Bonnet topological term, contains all the curvature invariants that, depending on the energy regime, can address inflation, matter dominated and dark energy regimes. In this paper, we investigate this possibility considering how $F(R,{\cal G})$ models can lead gravity from ultraviolet to infrared scales. Specifically, we will take into account a cosmographic approach for this purpose.
