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arXiv · 1210.7880

Inflation and Birth of Cosmological Perturbations

Misao Sasaki
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Abstract

We review recent developments in the theory of inflation and cosmological perturbations produced from inflation. After a brief introduction of the standard, single-field slow-roll inflation, and the curvature and tensor perturbations produced from it, we discuss possible sources of nonlinear, non-Gaussian perturbations in other models of inflation. Then we describe the so-called $δN$ formalism, which is a powerful tool for evaluating nonlinear curvature perturbations on super Hubble scales.

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Misao Sasaki. 2012-10-30. Inflation and Birth of Cosmological Perturbations. https://arxiv.org/abs/1210.7880

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