Episode 159: Quantum Electrodynamics Part 2

Continuing from quantum electrodynamics part 1, here we explore the mathematical machinery used to compute interactions between particles, including propagators, Feynman diagrams, cross sections. We then walk through a simple example calculation to illustrate how these tools are applied. I conclude with an introduction to the problem of divergent loop integrals and how these can be resolved using renormalisation. Recommended pre-listening is Episode 158: Quantum Electrodynamics Part 1. If you enjoyed the podcast please consider supporting the show by making a PayPal donation or becoming a Patreon supporter.

You can listen to Episode 159: Quantum Electrodynamics Part 2 online on Radio and Podcast. Open the player on this page to stream the available audio.

Episode 159: Quantum Electrodynamics Part 2 is an episode from The Science of Everything Podcast by James Fodor.

This episode is 45:18 long.

This episode was published on Apr 1, 2026.

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