Warped Compactifications in Particle Physics, Cosmology and Quantum Gravity

TL;DR

This paper reviews how warped compactifications, inspired by the AdS/CFT correspondence, have advanced research in particle physics, cosmology, and quantum gravity by enabling exploration of complex models and regimes.

Contribution

It highlights recent theoretical developments and applications of warped geometries in string theory, cosmology, and quantum gravity, emphasizing their role in expanding research possibilities.

Findings

Warped compactifications facilitate study of otherwise intractable parameter regimes.

They enable construction of string vacua with positive cosmological constant.

They provide insights into entanglement and information transfer in higher dimensions.

Abstract

Particle physics has evolved in the past decade through evaluating the consequences of experimental measurements as well as exploiting theoretical tools that permit exploration of new model building and cosmological possibilities. Particularly due to insights from the AdS/CFT correspondence, higher-dimensional warped compactifications, in particular, have played a big role in recent developments by allowing a study of regimes of parameters that would otherwise be intractable. Similarly, theoretical developments in quantum gravity benefit from the bigger range of possibilities that can be explored using warped geometry, allowing for constructions of string vacua with positive cosmological constant and for the exploration of entanglement and information transfer in arbitrary dimensions. Puzzles remain in both more phenomenologically oriented and more theoretically oriented contexts which form the basis for a rich research program in the future as well.