Braneworld Kaluza-Klein Corrections in a Nutshell

TL;DR

This paper introduces a new symmetry-based method to derive a 4D effective action with Kaluza-Klein corrections in braneworld models, aiding in testing the scenario and predicting cosmological and black hole phenomena.

Contribution

It presents a novel symmetry approach to derive KK corrections in the effective action for the Randall-Sundrum two-brane system, enabling better analysis of low energy limits and phenomenological predictions.

Findings

Provides a framework to evaluate KK corrections in braneworld models.

Facilitates predictions of CMB spectrum with KK effects.

Supports studies of black string to black hole transitions.

Abstract

Evaluating Kaluza-Klein (KK) corrections is indispensable to test the braneworld scenario. In this paper, we propose a novel symmetry approach to a 4-dimensional effective action with KK corrections for the Randall-Sundrum two-brane system. The result can be used to assess the validity of the low energy approximation. Also, our result provides the basis for predicting CMB spectrum with KK corrections and the study of the transition from black strings to black holes.