QFT

Thanks to Emmy Noether, we have a profound result that helped put energy conservation onto a rigorous platform, gave us relativists the Bianchi Identities, and provided hours of problems in QFT and classical mechanics for students to work though.

Special Post: Noether’s First Theorem – Emmy Noether for Ada Lovelace Day 2010

Thanks to Emmy Noether, we have a profound result that helped put energy conservation onto a rigorous platform, gave us relativists the Bianchi Identities, and provided hours of problems in QFT and classical mechanics for students to work though.

Special Post: Noether’s First Theorem – Emmy Noether for Ada Lovelace Day 2010

Thanks to Emmy Noether, we have a profound result that helped put energy conservation onto a rigorous platform, gave us relativists the Bianchi Identities, and provided hours of problems in QFT and classical mechanics for students to work though.

The Language of Science – it’s “just a theory” 2010

Every QFT is different: each describes different types of particles that have different charges and interactions between the particles.

False Vacua I: The End of the Universe As We Know it « Imaginary Potential 2008

Well, it turns out that a QFT is specified by a function, the “potential energy,” denoted here,.

False Vacua I: The End of the Universe As We Know it « Imaginary Potential 2008

And I don't think particle theorists have any grudge towards Aspect's results: relativistic QFT is fully compatible with the standard QM: as Dirac famously said, QFT is a marriage between QM and relativity.

Are Changes Brewing and How Does the Mind Fit In? 2008

The QFT is the mathematics of point-like objects (particles) in a Euclidean or Minkwoski space.

Are Changes Brewing and How Does the Mind Fit In? 2008

I’m sure they cover it in QFT (and that’s where a lot of people come across it for the first time, from what I’ve gathered), even though it is perfectly understandable at an undergraduate level.

Special Post: Noether’s First Theorem – Emmy Noether for Ada Lovelace Day 2010

The way Noether’s theorem is done in QFT texts are often “wrong” pedagogically: the derivation they give for the field theory version makes a lot more sense if you think about it as an analogy to the classical mechanics version.

Special Post: Noether’s First Theorem – Emmy Noether for Ada Lovelace Day 2010

We have no graduate courses in classical mechanics and I can only assume her theorem is taught in our QFT courses.

Special Post: Noether’s First Theorem – Emmy Noether for Ada Lovelace Day 2010