论文标题
标量扭转功能驱动的宇宙通胀
Cosmological inflation driven by a scalar torsion function
论文作者
论文摘要
提出了由弗里德曼背景中扭转功能驱动的通货膨胀模型的可行模型。为了满足通货膨胀的初始条件，获得了间隔$ 0.92 \ lyssim n_ {s} \ Lessim 0.97 $的标量光谱索引。还研究了通货膨胀阶段，并且获得的规模因子和能量密度获得的分析解决方案将其概括为占主导地位的宇宙，这仅表明与标准模型演化相距很小。使用的相同类型的扭转函数还令人满意地描述了宇宙的最新加速度，这可能表明可能统一不同阶段的统一，与特定的常数形成。
A viable model for inflation driven by a torsion function in a Friedmann background is presented. The scalar spectral index in the interval $0.92\lesssim n_{s}\lesssim 0.97$ is obtained in order to satisfy the initial conditions for inflation. The post inflationary phase is also studied, and the analytical solutions obtained for scale factor and energy density generalizes that ones for a matter dominated universe, indicating just a small deviation from the standard model evolution. The same kind of torsion function used also describes satisfactorily the recent acceleration of the universe, which could indicate a possible unification of different phases, apart form specific constants.
