Table of contents

Quantum Electrodynamics

A graduate path from relativistic quantum fields to precision scattering, loops, renormalization, and modern applications

Read each section in order. Every title can be opened as a TheoryTrace document.

• Cover
• Copyright
• How to read this book
• Introduction
• Chapter 1: The Physical Problem of Light and Matter
• Chapter 2: Relativistic Quantum Mechanics and Its Limits
• Chapter 3: Classical Fields, Symmetries, and Noether Structure
• Chapter 4: Quantizing Free Fields
• Chapter 5: The Dirac Field in Detail
• Chapter 6: The Electromagnetic Field and Gauge Redundancy
• Chapter 7: Building the QED Lagrangian
• Chapter 8: Perturbation Theory and the S-Matrix
• Chapter 9: Feynman Rules for QED
• Chapter 10: Tree-Level Scattering and Decay Processes
• Chapter 11: Ward Identities and Gauge Invariance in Amplitudes
• Chapter 12: Functional Methods and Generating Functionals
• Chapter 13: Gauge Fixing, Ghosts, and Covariant Quantization
• Chapter 14: One-Loop QED: Vacuum Polarization, Self-Energy, and Vertex Correction
• Chapter 15: Regularization and Renormalization
• Chapter 16: The Renormalization Group and Running Coupling
• Chapter 17: Infrared Physics and Soft Photons
• Chapter 18: Bound States and Nonrelativistic QED
• Chapter 19: Precision Tests: Anomalous Magnetic Moment and Lamb Shift
• Chapter 20: Discrete Symmetries and Spinor Observables
• Chapter 21: External Fields and Strong-Field QED
• Chapter 22: Anomalies and the Axial Current
• Chapter 23: QED as an Effective Field Theory
• Chapter 24: Mastering QED Calculations
• Conclusion