Perturbations in a non-singular bouncing Universe
classification
✦ hep-th
astro-phgr-qchep-ph
keywords
non-singularperturbationsactionamplifiedanalyticallybangbouncingbouncing-curvature
read the original abstract
We complement the low-energy gravi-dilaton effective action of string theory with a non-local, general-covariant dilaton potential, and obtain homogeneous solutions describing a non-singular (bouncing-curvature) cosmology. We then compute, both analytically and numerically, the spectrum of amplified scalar and tensor perturbations, and draw some general lessons on how to extract observable consequences from pre-big bang and ekpyrotic scenarios.
This paper has not been read by Pith yet.
Forward citations
Cited by 1 Pith paper
-
Modified Gravity Theories on a Nutshell: Inflation, Bounce and Late-time Evolution
Modified gravity theories supply viable mathematical frameworks for inflation, bounces, and dark energy eras that match observational data.
discussion (0)
Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.