论文标题
Starobinsky通货膨胀的非平凡扩展
Non-trivial Extension of Starobinsky Inflation
论文作者
论文摘要
在Starobinsky通货膨胀的背景下，我们考虑了一个非官方领域。我们在爱因斯坦框架工作。在此框架中，该动作的重力部分等效于希尔伯特 - 因斯坦的作用，以及一个名为Scalaron的标量场。 我们研究了一个模型，其中一个重量的标量捕获在有效的电势最小值上，而其波动可以忽略不计。更明确地，我们将狄拉克出生的污染物（DBI）领域通常视为非官方领域。虽然，DBI场通过对标量的隐式依赖性增强因子来控制通货膨胀，而其他数量与标准DBI模型不同。对于适当的参数，此模型与Planck结果一致。
We consider a non-canonic field in the context of Starobinsky inflation. We work in Einstein-frame. In this frame, the gravitational part of the action is equivalent to the Hilbert-Einstein action, plus a scalar field called scalaron. We investigate a model with a heavy scalaron trapped at the effective potential minimum, where its fluctuations are negligible. To be more explicit, we consider a Dirac-Born-Infeld (DBI) field, which is usually considered within the brane inflation context, as the non-canonic field. Although, the DBI field governs inflation through implicit dependence on Scalaron the boost factor, and other quantities are different from the standard DBI model. For appropriate parameters, this model is consistent with the Planck results.
