Advent calendar door #9: A brief history of quantum field theory

The world we live in is made up of fundamental particles interacting through the fundamental forces. One of the greatest aims of theoretical physics is to describe all of these forces and particles in one all-encompassing theory. Something called quantum field theory has been hugely successful in this context, but what exactly is it? And does it answer all the questions?

A few years ago we created a series of accessible articles which traces the history of quantum field theory, from its inception at the beginning of the twentieth century to the tantalising questions that are still open today. It's a story of pain and triumph, hardship and success. You can see these articles here.

Or if that feels a bit much for a Tuesday, wait until tomorrow's door which harbours a fun conversation with one of our favourite physicists!

Back to the Plus advent calendar 2025