Emergent Spacetime for Quantum Gravity

TL;DR

This paper discusses how noncommutative spacetime implies emergent spacetime, proposing a background-independent approach to quantum gravity that could address major unresolved issues in physics.

Contribution

It highlights the necessity of emergent spacetime from noncommutative geometry and advocates for a background-independent formulation of quantum gravity.

Findings

Noncommutative spacetime implies emergent spacetime.

Emergent spacetime offers new perspectives on unresolved physics problems.

Background independence is crucial for quantum gravity theories.

Abstract

We emphasize that noncommutative (NC) spacetime necessarily implies emergent spacetime if spacetime at microscopic scales should be viewed as NC. In order to understand NC spacetime correctly, we need to deactivate the thought patterns that we have installed in our brains and taken for granted for so many years. Emergent spacetime allows a background-independent formulation of quantum gravity that will open a new perspective to resolve the notorious problems in theoretical physics such as the cosmological constant problem, hierarchy problem, dark energy, dark matter, and cosmic inflation.