Abstract
In this chapter we will see how the second era of inflation can generate the energy density perturbation, that exists at the beginning of known history. The job might be done by a perturbation in the inflaton field, or else through a perturbation in some other scalar field.
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These are approximate definitions, see Appendix 2 for the exact definitions.
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Lyth, D.H. (2016). Generating the Perturbation. In: The History of the Universe. Astronomers' Universe. Springer, Cham. https://doi.org/10.1007/978-3-319-22744-3_15
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DOI: https://doi.org/10.1007/978-3-319-22744-3_15
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-22743-6
Online ISBN: 978-3-319-22744-3
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