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/

Global: Zendy Plus annual

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

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We construct ensembles of random scalar potentials for $N_f$ interactingscalar fields using non-equilibrium random matrix theory, and use these tostudy the generation of observables during small-field inflation. For$N_f={\cal O}({\rm few})$, these heavily featured scalar potentials give riseto power spectra that are highly non-linear, at odds with observations. For$N_f\gg 1$, the superhorizon evolution of the perturbations is genericallysubstantial, yet the power spectra simplify considerably and become morepredictive, with most realisations being well approximated by a linear powerspectrum. This provides proof of principle that complex inflationary physicscan give rise to simple emergent power spectra. We explain how these resultscan be understood in terms of large $N_f$ universality of random matrix theory.

Simple emergent power spectra from complex inflationary physics