Warped Compactifications in Particle Physics, Cosmology and Quantum Gravity

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.

Confinement in de Sitter space and the swampland

“…5D AdS space with codimension one branes, studied under Randall-Sundrum brane worlds, have had a wide application in BSM physics, cosmology, KKLT construction, AdS/BCFT and recently in BH information paradox related questions (see ref. [22] for a brief overview). The original proposal involved a slice of 5D AdS Poincare Patch between a positive tension UV brane and a negative tension IR brane, whose tensions were equal in magnitude and to a critical value.…”

TF1 Snowmass Report: Quantum gravity, string theory, and black holes

“…A particular particle physics scenario (alternative to low-energy supersymmetry) that has been a special focus of interest is the one introduced by Randall and Sundrum (see the white paper [9]). In this scenario, a slice of a highly warped 5d space-time is used to explain the hierarchy; the Standard Model Higgs fields can naturally live in the region of small warp factor.…”

Confinement in de Sitter Space and the Swampland

“…5D AdS space with codimension one branes, studied under Randall-Sundrum brane worlds, have had a wide application in BSM physics, cosmology, KKLT construction, AdS/BCFT and recently in BH information paradox related questions (see ref. [20] for a brief overview). The original proposal involved a slice of 5D AdS Poincare Patch between a positive tension UV brane and a negative tension IR brane, whose tensions were equal in magnitude and to a critical value.…”