euler Lagrange equation of motion in 4vector euler Lagrange equation in QFT

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‪@physicsmathwarrior1998RFA‬ • this video is about • euler Lagrange equation of motion in 4-vector | euler Lagrange equation in QFT • The Euler-Lagrange equations are classical equations for classical fields. QFT evolves the fields in the same way QM evolves operators • ∂ℒ/∂𝜙−𝜕_𝜇 (𝜕ℒ/(𝜕〖(𝜕〗_𝜇 𝜙)))=0

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