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2025-12-10 15:45:53 UTC
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David Quintero on Nostr: Regarding "QFT for the Gifted Amateur" explains a little bit its motivation, but I ...

Regarding "QFT for the Gifted Amateur" explains a little bit its motivation, but I don't remember it exactly. A bit I didn't like is that when explaining the SM, they expressed the non-abelian field strength with a cross product,

\[G_{\mu\nu}=\partial_{\mu}W_{\nu} - \partial_{\nu}W_{\mu} +g(W_{\mu}\times W_{\nu}\]

I know it's a minor detail, but somehow I found it annoying. I would have left the cross product restricted to classical physics, chained there for all the eternity.