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quantum field theorySee R. P. Feynman, QED (1985); F. J. Yndurain, The Theory of Quark and Gluon Interactions (1993).
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- quantum theory
Quantum theory, modern physical theory concerned with the emission and absorption of energy by matter and with the motion of material particles; the quantum theory and the theory of relativity...
- quantum chromodynamics
Quantum chromodynamics (QCD), quantum field theory that describes the properties of the strong interactions between quarks and between protons and neutrons in the framework of quantum theory. ...
- quantum electrodynamics
Quantum electrodynamics (QED), quantum field theory that describes the properties of electromagnetic radiation and its interaction with electrically charged matter in the framework of quantum ...
- electroweak theory
Electroweak theory, a unified field theory that describes two of the fundamental forces in nature, electromagnetism (see electromagnetic radiation) and the weak interaction. The electroweak th...
- gluon
Gluon, an elementary particle that mediates, or carries, the strong, or nuclear, force. In quantum chromodynamics (QCD), the quantum field theory of strong interactions, the interaction of qua...
- strong interactions
Strong interactions, actions between elementary particles mediated, or carried, by gluons. They are responsible for the binding of protons and neutrons in the nucleus and interactions between ...
- Van Vleck, John Hasbrouck
Van Vleck, John Hasbrouck, 1899–1980, American physicist, b. Middletown, Conn., Ph.D. Harvard, 1922. As a professor at Harvard, Van Vleck developed fundamental theories on the quantum mechanic...
- Gell-Mann, Murray
Gell-Mann, Murray, 1929–, American theoretical physicist, b. New York City, grad. Yale 1948, Ph.D. Massachusetts Institute of Technology, 1951. In 1953, he and the Japanese team of T. Nakano a...
- Sommerfeld, Arnold Johannes Wilhelm
Sommerfeld, Arnold Johannes Wilhelm, 1868–1951, German physicist and teacher. He received a Ph.D. at Königsburg Univ. in 1891 and was a professor of physics at the Univ. of Munich from 1906 to...
- Cayley, Arthur
Cayley, Arthur, 1821–95, English mathematician. He was admitted to the bar in 1849. In 1863 he was appointed first Sadlerian professor of mathematics at Cambridge. His researches, which covere...
