forces emerge naturally as the “corrections” needed to preserve local symmetries at every point in spacetime. I think gauge fields finally clicked after watching this video.
The fact that you can actually answer "why is electromagnetism a thing" is incredible to me. It explains why photons are massless, why electric and magnetic fields interact, it derives maxwell's equations... all from a simple fact that the dirac equation has local phase symmetry. mind blown.
https://youtu.be/Sj_GSBaUE1o
jb55 /
npub1xt…vkk5s
2025-03-10 06:26:05
Author Public Key
npub1xtscya34g58tk0z605fvr788k263gsu6cy9x0mhnm87echrgufzsevkk5sPublished at
2025-03-10 06:26:05Event JSON
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"content": "forces emerge naturally as the “corrections” needed to preserve local symmetries at every point in spacetime. I think gauge fields finally clicked after watching this video.\n\nThe fact that you can actually answer \"why is electromagnetism a thing\" is incredible to me. It explains why photons are massless, why electric and magnetic fields interact, it derives maxwell's equations... all from a simple fact that the dirac equation has local phase symmetry. mind blown.\n\nhttps://youtu.be/Sj_GSBaUE1o",
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