论文标题
约旦框架的慢速通货膨胀
Slow-Roll Inflation in the Jordan Frame
论文作者
论文摘要
基于标量调整的重力理论的通胀模型在约旦框架中提出，但通常在爱因斯坦框架中进行了分析。框架之间的转换并不总是可取的。在这项工作中，我们在Jordan框架中制定了缓慢的条件。这是通过比较两个帧中同一空间切片上不同背景数量和近似值来实现的。我们使用这些近似值来得出简单的方程式，这些方程仅用于计算通货膨胀模型仅根据约旦框架数量来观察。最后，我们将一些结果应用于分析通用的诱导重力模型，并将其与最新观察结果进行比较。
Inflation models based on scalar-tensor theories of gravity are formulated in the Jordan frame but most often analysed in the Einstein frame. The transformation between the frames is not always desirable. In this work we formulate slow-roll conditions in the Jordan frame. This is achieved by comparing different background quantities and approximations on the same spatial slice in both frames. We use these approximations to derive simple equations that can be applied to compute inflation model observables in terms of Jordan frame quantities only. Finally, we apply some of the results to analyse generalised induced gravity models and compare them with the latest observations.
