论文标题
具有非亚伯量规矢量场的宇宙学模型的动态分析
Dynamical analysis of cosmological models with non-Abelian gauge vector fields
论文作者
论文摘要
在本文中，我们研究了一些模型，其中赋予SU（2）组表示的非亚洲量规矢量场是通货膨胀和暗能量的独特来源。这些模型首先以仪表和仪表的名义引入。尽管已经讨论过这些模型的几个实现，但并非所有可用参数和初始条件都知道。在这项工作中，我们使用动态系统方法来找到每个模型的大量版本的完整参数空间。特别是，我们发现包含质量项会增加通货膨胀期的长度。此外，质量项意味着黑暗能量状态方程的新行为，可以将其与其他原型膨胀模型区分开。我们表明，轴向对称的量规场可以支持观察界内各向异性加速的膨胀。
In this paper we study some models where non-Abelian gauge vector fields endowed with a SU(2) group representation are the unique source of inflation and dark energy. These models were first introduced under the name of gaugeflation and gaugessence, respectively. Although several realizations of these models have been discussed, not all available parameters and initial conditions are known. In this work, we use a dynamical system approach to find the full parameter space of the massive version of each model. In particular, we found that the inclusion of the mass term increases the length of the inflationary period. Additionally, the mass term implies new behaviors for the equation of state of dark energy allowing to distinguish this from other prototypical models of accelerated expansion. We show that an axially symmetric gauge field can support an anisotropic accelerated expansion within the observational bounds.
