A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2020; you can also visit the original URL.
The file type is application/pdf
.
Quantum incompleteness of inflation
2019
Physical Review D
Inflation is most often described using quantum field theory (QFT) on a fixed, curved spacetime background. Such a description is valid only if the spatial volume of the region considered is so large that its size and shape moduli behave classically. However, if we trace an inflating universe back to early times, the volume of any comoving region of interest – for example the present Hubble volume – becomes exponentially small. Hence, quantum fluctuations in the trajectory of the background
doi:10.1103/physrevd.100.063517
fatcat:xz5ncux5mzfo3h4x3pzmnt6idu