Large-scales solitonic back-reaction behavior in power-law inflation and its relationship with dark energy

Publication date: Available online 7 February 2019Source: Physics of the Dark UniverseAuthor(s): Juan Ignacio Musmarra, Mariano Anabitarte, Mauricio BelliniAbstractWe study the behavior of large-scale (cosmological) modes of back-reaction effects during inflation. We find that the group of modes which describes the very large-scale fluctuations of energy density during inflation due to back-reaction effects evolve in phase between them, but there is a tear of these modes with respect to the other modes that describe astrophysical scales. This effect could be the origin for the large-scale homogeneity and isotropy of the universe and could be a manifestation of the existence of dark energy, which is responsible for the accelerated expansion of the universe.

Source: Physics of the Dark Universe - February 7, 2019 Category: Physics Source Type: research