quantum field theory

Definitions of quantum field theory
  1. noun
    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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    types:
    QED, quantum electrodynamics
    a relativistic quantum theory of the electromagnetic interactions of photons and electrons and muons
    QCD, quantum chromodynamics
    a theory of strong interactions between elementary particles (including the interaction that binds protons and neutrons in the nucleus); it assumes that strongly interacting particles (hadrons) are made of quarks and that gluons bind the quarks together
    type of:
    quantum physics
    the branch of physics based on quantum theory
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