What are gauge theories?

Some articles on gauge theories, gauge, theories:

Regauging - Quantization of Gauge Theories - Methods and Aims
... The first gauge theory to be quantized was quantum electrodynamics (QED) ... The first methods developed for this involved gauge fixing and then applying canonical quantization ... Non-abelian gauge theories are now handled by a variety of means ...
D-brane - Gauge Theories
... In most theories, strings are oriented objects each one carries an "arrow" defining a direction along its length.) The open strings permissible in this situation then fall into two ... Because string theories are by nature relativistic, adding energy to a string is equivalent to adding mass, by Einstein's relation E = mc2 ... electromagnetism is only one kind of gauge theory, a U(1) gauge theory where the gauge group is made of unitary matrices of order 1 ...
Sakurai Prize - Prize Recipients
... of spontaneous symmetry breaking in four-dimensional relativistic gauge theory and of the mechanism for the consistent generation of vector boson masses." See also 1964 ... QCD, non-leptonic weak decays, and the analytic properties of supersymmetric gauge theories" 1998 Leonard Susskind "For his pioneering contributions to ... work on the high energy behavior of quantum field theories and his elucidating studies of the global structure of non-abelian gauge theories" 1990 Toichiro Kinoshita "For his theoretical contributions to ...
Regauging - History and Importance
... The earliest field theory having a gauge symmetry was Maxwell's formulation of electrodynamics in 1864 ... conjectured that Eichinvarianz or invariance under the change of scale (or "gauge") might also be a local symmetry of general relativity ... mechanics, Weyl, Vladimir Fock and Fritz London modified gauge by replacing the scale factor with a complex quantity and turned the scale transformation into a change of phase, which ...
Regauging - Quantization of Gauge Theories
... Gauge theories may be quantized by specialization of methods which are applicable to any quantum field theory ... However, because of the subtleties imposed by the gauge constraints (see section on Mathematical formalism, above) there are many technical problems to be solved which do not arise in other ... At the same time, the richer structure of gauge theories allow simplification of some computations for example Ward identities connect different renormalization constants ...

Famous quotes containing the word theories:

    The theories and speculations of men concern us more than their puny accomplishment. It is with a certain coldness and languor that we loiter about the actual and so-called practical.
    Henry David Thoreau (1817–1862)