My all-time favorite variational calculus example! Well illustrated. Dillon you rule.https://twitter.com/InertialObservr/status/1153018532369555456 …
indeed in a classical field theory the brachistochrone has a direct analog, however in a quantum field theory there will be quantum corrections to the classical path
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Also I’m a dick because QCD doesn’t have the kid of potential we need for this. But it’s fun to talk about.
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right.. but the idea is that we can extend the lagrangian to fields instead of point particles is right.. it's just that adding a gauge theory would only complicate matters
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