论文标题
从通货膨胀弹跳
Bounce from Inflation
论文作者
论文摘要
我们构建了一类可行的弹跳模型，这些模型与宇宙通货膨胀构成了一致性。构建这样的模型存在三个主要困难：（i）稳定的（吸引子）解决方案，（ii）一个非单独的弹跳，（iii）绕过无定理，该定理指出，不可能在张张量比和非高斯标量谱的情况下同时维持张张量比的观察界限。我们表明，标量场的非最小耦合有助于绕过这些困难，并在弹跳阶段后短暂地短暂地提供了一个可行的弹跳模型。
We construct a class of viable bouncing models that are conformally related to cosmological inflation. There are three main difficulties in constructing such a model: (i) A stable (attractor) solution, (ii) A non-singular bounce, and (iii) to bypass the no-go theorem that states that simultaneously maintaining the observational bounds on the tensor-to-scalar ratio and the non-Gaussian scalar spectrum are not possible. We show that a non-minimal coupling of the scalar field helps to bypass these difficulties and provides a viable bouncing model with a naturally occurring reheating epoch briefly after the bouncing phase.
