QED

/ˈkju ˈi ˌdi/
IPA guide

Definitions of QED
  1. noun
    a relativistic quantum theory of the electromagnetic interactions of photons and electrons and muons
    synonyms: quantum electrodynamics
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    type of:
    quantum field theory
    the branch of quantum physics that is concerned with the theory of fields; it was motivated by the question of how an atom radiates light as its electrons jump from excited states
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