Can conservation of momentum be directly derived from quantum field theory (e.g. QED).(adsbygoogle = window.adsbygoogle || []).push({});

My feeling is this should be true since the Dirac equation reduces to Schrodinger's wave equation in the nonrelativistic limit which is a reflection of Newton's second law, thereby implying conservation of classical momentum.

What about conservation of 4-momentum?

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# Conservation of momentum in QFT

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