Introduction to Loop Quantum Gravity

TL;DR

This paper provides an introductory overview of Loop Quantum Gravity, covering its foundational principles, background independence, and canonical formulation, aimed at beginners in the field.

Contribution

It offers a concise, accessible introduction to the core concepts and premises of Loop Quantum Gravity for newcomers.

Findings

Summarizes the background independent approach to quantum gravity.

Introduces the canonical theory of gravity.

Provides an overview of Loop Quantum Gravity principles.

Abstract

The questions I have been asked during the 5th International School on Field Theory and Gravitation, have compelled me to give an account of the premises that I consider important for a beginner's approach to Loop Quantum Gravity. After a description of some general arguments and an introduction to the canonical theory of gravity, I review the background independent approach to quantum gravity, giving only a brief survey of Loop Quantum Gravity.