论文标题
约旦框架的双曲线通货膨胀
Hyperbolic inflation in the Jordan frame
论文作者
论文摘要
我们考虑了约旦框架中的多尺度场模型，该模型可以看作是一个两尺度场模型，其中Brans-Dicke场与第二个标量场在动力学部分中相互作用。在共形转化下的这一理论减少了双曲线通胀。我们表明，根据理论提供了扩展解决方案和DE Sitter宇宙。在渐近动力学的研究中，我们确定了所有流体来源在宇宙流体中贡献的吸引子。该吸引子始终是螺旋形的，可以看作是约旦框架中双曲线通胀的类似物。
We consider a multi-scalar field model in the Jordan frame which can be seen as a two-scalar field model where the Brans-Dicke field interacts in the kinetic part with the second scalar field. This theory under a conformal transformation reduces to the hyperbolic inflation. We show that scaling solutions and the de Sitter universe are provided by theory. In the study of asymptotic dynamics, we determine an attractor where all the fluid sources contribute in the cosmological fluid. This attractor is always a spiral and it can be seen as the analogue of the hyperbolic inflation in the Jordan frame.
