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 investigate one-loop quantum corrections to the power spectrum ofadiabatic perturbation from entropy modes/adiabatic mode cross-interactions inmultiple DBI inflationary models. We find that due to the non-canonical kineticterm in DBI models, the loop corrections are enhanced by slow-varying parameter$\epsilon$ and small sound speed $c_s$. Thus, in general the loop-correctionsin multi-DBI models can be large. Moreover, we find that the loop-correctionsfrom adiabatic/entropy cross-interaction vertices are IR finite.

Loop Corrections to Cosmological Perturbations in Multi-field Inflationary Models