论文标题
修改的电力法通货膨胀：解决优美的退出问题和黑暗能源模型的改进的方法
Modified Power law Inflation: solution to the graceful exit problem and improvement of dark energy models
论文作者
论文摘要
我们研究具有单一潜力的电力定律通货膨胀（PLI），并找到一种新颖的精确解决方案。众所周知，具有指数潜力的常规PLI与Planck数据不一致。与标准PLI不同，目前的模型并不遭受优雅的退出问题的困扰，并且与最近的观察结果相当吻合。我们已经计算了光谱指数和张量表与量表比，这与最近的观察数据非常吻合，并且与其他修改的通货膨胀模型相媲美。已经使用了一种技术，该技术表明，在电力定律通货膨胀的情况下，大型宇宙常数随着宇宙的扩展而降低。充气与重力的耦合是该技术的要点。这里的基本假设是，重力和充气部件中的两个度量张量对应于不同的共形框架，这与传统的功率法膨胀相矛盾，在该构图中，充气直接与背景度量张量直接耦合。这一事实直接应用于不同的暗能量模型和辅助典型理论。
We study power law inflation (PLI) with a monomial potential and find a novel exact solution. It is well known that conventional PLI with exponential potential is inconsistent with the Planck data. Unlike the standard PLI, present model does not suffer from graceful exit problem and it agrees fairly well with recent observations. We have calculated the spectral index and the tensor-to-scalar ratio which are in very good agreement with recent observational data and also comparable with other modified inflationary models. A technique has been used which shows that the large cosmological constant reduces with expansion of the Universe in case of the power law inflation. The coupling of the inflaton with gravitation is the main point in this technique. The basic assumption here is that the two metric tensors in the gravitational and the inflaton parts correspond to different conformal frames which is in contradiction with the conventional power law inflation where the inflaton directly coupled with the background metric tensor. This fact has direct application to different dark energy models and assisted quintessence theory.
