Accelerated expansion of the Universe purely driven by scalar field fluctuations
Phys. Rev. D 114, 023513 – Published 6 July, 2026
DOI: https://doi.org/10.1103/4zn2-bh68
Abstract
We show that scalar field fluctuations alone can drive cosmic acceleration, provided the Universe is spatially closed and the Compton wavelength of the field exceeds the radius of curvature. This mechanism may open new perspectives on inflation and dark energy, which could arise from a gas of sufficiently light bosons in a closed universe.
