English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Zendy Plus

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Zendy Tools

Zendy Open

We formalize the Hubble slow-roll formalism for inflationary dynamics inRandall-Sundrum Type II braneworld cosmologies, defining Hubble slow-rollparameters which can be used along with the Hamilton-Jacobi formalism.Focussing on the high-energy limit, we use these to calculate the exact powerspectrum for power-law inflation, and then perturb around this solution toderive the higher-order expression for the density perturbations (sometimescalled the Stewart-Lyth correction) of slow-roll braneworld models. Finally weapply our result to specific examples of potentials to calculate the correctionto the amplitude of the power spectrum, and compare it with the standardcosmology. We find that the amplitude is not changed significantly by thehigher-order correction.Comment: 7 pages RevTeX4 fil

Inflationary slow-roll formalism and perturbations in the Randall-Sundrum type II braneworld