Gravity and Large Extra Dimensions

TL;DR

This paper reviews theories proposing large extra spatial dimensions that could enable quantum gravity at TeV energies, discussing their foundational principles and physical implications.

Contribution

It provides a systematic overview of the theoretical foundations and physical consequences of models with large extra dimensions.

Findings

Large extra dimensions could lower the quantum gravity scale to TeV energies.

Theories with extra dimensions have specific testable predictions in high-energy experiments.

Physical implications include modifications to gravity at small scales and potential collider signatures.

Abstract

The idea that quantum gravity can be realized at the TeV scale is extremely attractive to theorists and experimentalists alike. This proposal leads to extra spacial dimensions large compared to the electroweak scale. Here we give a very systematic view of the foundations of the theories with large extra dimensions and their physical consequences.