quantum electrodynamics

quantum electrodynamics

n. (used with a sing. verb)

The quantum theory of the properties and behavior of muons, photons, and electrons and the electromagnetic field.

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quantum electrodynamics

n

(Physics / Atomic Physics) Physics a relativistic quantum mechanical theory concerned with electromagnetic interactions Abbreviation QED

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quantum electrodynamics

A quantum field theory of electromagnetism that explains the interactions between electrically charged particles and photons. According to quantum electrodynamics, charged particles interact with one other by emitting or absorbing photons, which are the carriers of the electromagnetic force. Quantum electrodynamics correctly predicts such phenomena as the structure of atoms, and the creation and annihilation of particles (for example, when matter and antimatter collide). Quantum electrodynamics is one of the most well-tested, accurate, and successful theories in physics.

Thesaurus

Noun

1.

quantum electrodynamics - a relativistic quantum theory of the electromagnetic interactions of photons and electrons and muons QED 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