Phenomenological Quantum Gravity

TL;DR

This paper discusses the challenges and recent efforts in understanding phenomenological aspects of quantum gravity at the Planck scale, where classical spacetime concepts break down and new physics is expected to emerge.

Contribution

It reviews recent phenomenological approaches to quantum gravity, highlighting the importance of experimental and observational efforts despite the absence of a complete theory.

Findings

Increased experimental efforts are probing quantum gravity phenomenology.

The Planck scale signifies a boundary where classical spacetime concepts fail.

Recent studies aim to identify observable signatures of quantum gravity.

Abstract

Planck scale physics represents a future challenge, located between particle physics and general relativity. The Planck scale marks a threshold beyond which the old description of spacetime breaks down and conceptually new phenomena must appear. In the last years, increased efforts have been made to examine the phenomenology of quantum gravity, even if the full theory is still unknown.