Introduction to Quantum Fields in Curved Spacetime and the Hawking Effect

TL;DR

This paper introduces quantum field theory in curved spacetime, exploring phenomena like particle creation, Hawking radiation, and primordial perturbations, highlighting foundational questions and recent approaches in the field.

Contribution

It provides a comprehensive overview of quantum effects in curved spacetime, including new insights into Hawking radiation and lattice models.

Findings

Particle creation in dynamic metrics

Quantum origin of primordial fluctuations

Hawking radiation on a lattice

Abstract

These notes introduce the subject of quantum field theory in curved spacetime and some of its applications and the questions they raise. Topics include particle creation in time-dependent metrics, quantum origin of primordial perturbations, Hawking effect, the trans-Planckian question, and Hawking radiation on a lattice.