标题： 通胀：流场、不动点和任意阶慢滚可观测量 显示英文标题

标题： Inflation: flow, fixed points and observables to arbitrary order in slow roll

摘要： 我将霍夫曼和特纳的暴胀流方程推广到慢滚任意阶。 这使得研究慢滚暴胀在整个可观测参数空间（张量/标量比 $r$、谱指数 $n$、跑动 $d n / d \ln k$）上的预测成为可能。 同时，也可以确定参数流中的精确不动点。 对于一组随机选取的初始条件，我在慢滚五阶下数值求解这些流方程，并发现模型在可观测参数空间中强烈聚类，表明慢滚暴胀有一组“普遍”的预测。 我还简要评论了暴胀参数空间中的流与边界共形场论中的重整化群流之间有趣的对应关系。 显示英文摘要

摘要： I generalize the inflationary flow equations of Hoffman and Turner to arbitrary order in slow roll. This makes it possible to study the predictions of slow roll inflation in the full observable parameter space of tensor/scalar ratio $r$, spectral index $n$, and running $d n / d \ln k$. It also becomes possible to identify exact fixed points in the parameter flow. I numerically evaluate the flow equations to fifth order in slow roll for a set of randomly chosen initial conditions and find that the models cluster strongly in the observable parameter space, indicating a ``generic'' set of predictions for slow roll inflation. I comment briefly on the the interesting proposed correspondence between flow in inflationary parameter space and renormalization group flow in a boundary conformal field theory.