Title: Model Independent Signatures of New Physics in the Inflationary Power Spectrum Show Chinese title

Title: 暴胀功率谱中独立于模型的新物理标志

Abstract: We compute the universal generic corrections to the inflationary power spectrum due to unknown high-energy physics. We arrive at this result via a careful integrating out of massive fields in the "in-in" formalism yielding a consistent and predictive low-energy effective description in time-dependent backgrounds. We find that the power spectrum is universally modified at order H/M, where H is the scale of inflation. This is qualitatively different from the universal corrections in time-independent backgrounds, and it suggests that such effects may be present in upcoming cosmological observations. Show Chinese abstract

Abstract: 我们计算了由于未知的高能物理导致的暴胀功率谱的普适泛化修正。 我们通过仔细地在“in-in”形式主义中消去大质量场来得出这一结果，从而得到一个在时间相关背景下的一致且可预测的低能有效描述。 我们发现功率谱在 H/M 阶次上被普遍修正，其中 H 是暴胀的尺度。 这与时间无关背景下普适修正的本质不同，并表明此类效应可能出现在即将到来的宇宙学观测中。