quantum electrodynamics

quantum electrodynamics
(QED) A relativistic quantum theory of electromagnetic interactions. It provides a description of the interaction of electrons, muons and photons and hence the underlying theory of all electromagnetic phenomena.

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  • Quantum electrodynamics — (QED) is a relativistic quantum field theory of electrodynamics. QED was developed by a number of physicists, beginning in the late 1920s. It basically describes how light and matter interact. More specifically it deals with the interactions… …   Wikipedia

  • quantum electrodynamics — [with sing. v.] n. Physics a theory that applies the principles of the quantum theory to electrodynamics: it describes how photons interact electromagnetically with electrons, protons, etc …   English World dictionary

  • quantum electrodynamics — kvantinė elektrodinamika statusas T sritis fizika atitikmenys: angl. quantum electrodynamics vok. Quantenelektrodynamik, f rus. квантовая электродинамика, f pranc. électrodynamique quantique, f …   Fizikos terminų žodynas

  • quantum electrodynamics — quantum theory of electromagnetic radiation and its interaction with atom particles and electrically charged atoms (Quantum Mechanics) …   English contemporary dictionary

  • quantum electrodynamics — Physics. the quantum field theory that deals with the electromagnetic field and its interaction with electrons and positrons. Abbr.: QED [1925 30] * * * ▪ physics        quantum field theory of the interactions of charged (electric charge)… …   Universalium

  • quantum electrodynamics — noun a relativistic quantum theory of the electromagnetic interactions of photons and electrons and muons • Syn: ↑QED • Hypernyms: ↑quantum field theory …   Useful english dictionary

  • quantum electrodynamics — noun plural but usually singular in construction Date: 1927 quantum mechanics applied to electrical interactions (as between nuclear particles) …   New Collegiate Dictionary

  • quantum electrodynamics — noun the study of the interaction of electromagnetic radiation with electrically charged matter within the framework of relativity and quantum mechanics …   Wiktionary

  • quantum electrodynamics — quan′tum electrodynam′ics n. phs (used with a sing. v.) the quantum mechanical theory of the electromagnetic field and its interaction with electrons and positrons Abbr.: QED • Etymology: 1925–30 …   From formal English to slang

  • quantum electrodynamics (QED) — Quantum theory of the interactions of charged particles with the electromagnetic field. It describes the interactions of light with matter as well as those of charged particles with each other. Its foundations were laid by P. A. M. Dirac when he… …   Universalium

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