NASA NTRS · 19910015620
Plausible double inflation
Abstract
It is likely that extended inflation is followed by an epoch of slowroll inflation. Such a sequence of events may lead to a very interesting perturbation spectrum with significant power on the scale of the transition between the extended and slowroll phase, superimposed upon a power-law spectrum with deviations from the Harrison-Zeldovich slope. Normalization of the spectra above and below the transition scale is expected to differ.
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Holman, Richard, Kolb, Edward W., Vadas, Sharon L., Wang, Yun. 1991-03-01. Plausible double inflation. https://ntrs.nasa.gov/citations/19910015620
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