| Gauge theory | has author Chen Ning Yang and Robert Mills (1954) |  |
| has name origin the term "gauge theory" is an archaic one, coming from earlier theories which were based on invariance under transformation of scale (i.e. gauge) | |
| has synonym Yang-Mills theories | |
| has definition A theory whose dynamics originate from a symmetry. That is, the formulae describing the theory (in particular, the Lagrangian) are unchanged under certain symmetry transformations, called "gauge" transformations. For example, the equations of classical electrodynamics are invariant under local redefinitions of the electrostatic potential. This symmetry is ultimately responsible for the conservation of electric charge. However, in quantum electrodynamics this gauge symmetry is reinterpreted as invariance under local redefinitions of the phase of the electron wave function. | |
| has definition Account of forces that views them as arising from broken symmetries. | |
| has definition A theory that treats force in a geometrical way in terms of global and local symmetries. | |
| has definition In 1973 David Gross, Frank Wilczek, and David Politzer showed that these theories possess a property called asymptotic freedom, just what was needed for a theory of how quarks bind to form protons and neutrons. The new theory, dubbed quantum chromodynamics or QCD, proposed that the color of the quarks acts as the charge of the Yang-Mills interactions. | |
| is a kind of unified theory | |
| theory | has validity correct or incorrect with caveats | |
| has domain a field of research | |
| has date or a range of dates for which the theory was active | |
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