论文标题
多场模型中的恒定滚动通胀
Constant roll inflation in multifield models
论文作者
论文摘要
在存在多标量线场的情况下，分析了恒定的滚动通胀，这些量子场假定每个标量。研究了不同的情况，并重建了相应的电位。获得了确切的解决方案，该解决方案显示出与单个标量场模型相似的行为。对于本文中分析的一个案例，所谓的绝热场在熵扰动中也持续滚动，而第二种情况可能导致非绝热扰动。两种情况都可以通过假设模型的自由参数的适当值来很好地符合Planck数据。
Constant roll inflation is analyzed in the presence of multi scalar fields which are assumed to be described by a constant roll rate each. The different cases are studied and the corresponding potentials are reconstructed. The exact solutions are obtained, which show a similar behaviour to the single scalar field model. For one of the cases analyzed in the paper, the so-called adiabatic field also constant rolls while entropy perturbations become null, while the second case may lead to non-adiabatic perturbations. Both cases can fit well the Planck data by assuming the appropriate values for the free parameters of the models.
