gauge theory

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gauge theory

n. Physics
Any of various theories based upon a gauge symmetry. Current fundamental theories, such as the standard model of particle physics, are gauge theories.

gauge theory

n
(Nuclear Physics) physics a type of theory of elementary particles designed to explain the strong, weak, and electromagnetic interactions in terms of exchange of virtual particles
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This form contains terms which cannot be elliminated by a holomorphic gauge transformation.
It will be essential to find a mathematical criterion that distinguishes this condition rather than simply asserting some gauge transformation exists on the lagrangian and seeking the ones that preserve this.
Indian Railways intend to add 4000 kms of new lines besides over 7500 kms of increasing and 5500 kms of gauge transformation.
1) into a symmetric form (which is only meaningful for spinless classical charges), the following gauge transformation has to be applied for tensor entities:
As this phase shift is essentially due to the vector potential, the gauge transformation of this potential also only affects the phase of the wave function of the particle.
This result highlights the importance of carefully selecting the gauge transformation used to simplify calculations.
39) is invariant under the local gauge transformation of the spinor [psi] (Bjorken, 1964 [5]).
An alternative modification of U(I) gauge invariance explored in ([21], where we demand that the Lagrangian density be invariant under a time-local (rather than space-local) U(1) gauge transformation [psi] [right arrow] [psi]' = U[psi] with U being time-dependent (rather than space-dependent), generated a scalar spin0 field (rather than a 3-vector spin1 field) which we identify as the gravitational field (instead of the magnetic field).
By following the usual approach of deriving a chiral symmetry from a gauge transformation of a gauge field we have the following chiral symmetry which is derived by applying an analytic gauge transformation with an analytic function [omega] for the transformation:
The things that are permuted by gauge transformations are not, for example, spacetime points, but elements of the fibre over each spacetime point; these elements do not represent 'individuals' according to any extant (or any plausible) metaphysical interpretation.
So the gauge group is now being given an active interpretation, but with the proviso that events linked by gauge transformations are observationally indistinguishable.