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arXiv · 2009.14579

A resolution of the Trans-Planckian problem in the R_h=ct universe

Fulvio Melia
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Abstract

The recent measurement of a cutoff k_min in the fluctuation power spectrum P(k) of the cosmic microwave background may vitiate the possibility that slow-roll inflation can simultaneously solve the horizon problem and account for the formation of structure via the growth of quantum fluctuations in the inflaton field. Instead, we show that k_min may be interpreted more successfully in the R_h=ct cosmology, as the first mode exiting from the Planck scale into the semi-classical Universe shortly after the Big Bang. In so doing, we demonstrate that such a scenario completely avoids the well-known trans-Planckian problem plaguing standard inflationary cosmology.

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Fulvio Melia. 2020-09-29. A resolution of the Trans-Planckian problem in the R_h=ct universe. https://doi.org/10.1002/asna.202013813

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