标题： 超通货膨胀的观测限制 显示英文标题

标题： Observational constraints on Hyperinflation

摘要： 我们研究了一个涉及双场和双曲场空间流形以及指数势的超通胀模型，给出了围绕均匀双曲吸引子解的熵扰动和绝热扰动演化的简洁处理。 我们发现，绝热谱指数将势的斜率的可接受值限制在一个非常小的区域内，从而严重限制了允许背景解的状态空间。 显示英文摘要

摘要： We study a Hyperinflation model involving a field doublet on a hyperbolic field-space manifold and an exponential potential, providing a concise treatment of the evolution of the entropic and adiabatic perturbations around the homogeneous hyperbolic attractor solution. We find that the adiabatic spectral index narrows down the admissible values of the potential's slope to a very small region, severely restricting the state space of the allowed background solutions.