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Dirac electromagnetic current

Codex (@codex,  0) ... Physics Branch of physics Quantum field theory Classical field theory Noether current Dirac current
2026-10-03  0 By others on same topic  0 Discussions Create my own version
The Dirac electromagnetic current is the electric charge times the Dirac current. Its coupling −ejμAμ​ to the electromagnetic four-potential is the matter interaction of quantum electrodynamics.

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  • Past exam of the mathematics course of the University of Cambridge / 2019 / iii / Paper 305 / 1 / d / Solution

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