There are three types of fields Electromagnetic Fields, Quantum Fields and Gravitation Fields. They all listen to the same mathematics Tensor Metric. Field theory is a branch of mathematics which studies the properties of fields. ... This article presents the essential definitions. ... There are two types of field theory in physics: Classical field theory, the theory and dynamics of classical fields. ... This article or section does not cite its references or sources. ...
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The field theory arose from aether theory investigations. [ The Measure of the Universe, JD North, Oxford University Press, 1965 p 25 onwards.] Einstein was pursuing what can be called classical field theorising for his unified field theory, and was taken up by his co-worker Lancelot Law Whyte. Lancelot Law Whyte was a scientist working with Albert Einstein on the unified field theory, based on the theory of Roger Boscovich. ...
In physics, unified fieldtheory is an attempt to unify all the fundamental forces and the interactions between elementary particles into a single theoretical framework.
This unified theory was governed by the exchange of four particles: the photon for electromagnetic interactions, and a neutral Z particle and two charged W particles for weak interaction.
The unified fieldtheory must be consistent, explain all previously known aspects of gravity on a large scale, and of quantum mechanics on the subatomic level, in a single framework while making new and falsifiable predictions.
Relativistic quantum fieldtheories are indispensable in particle physics (see the standard model), although they are known to arise as effective fieldtheories in condensed matter physics.
Classical fieldtheory is the same as classical mechanics of an infinite number of dynamical quantities (say, tiny elements of rubber on a rubber sheet).
The particle associated with excitations of the gauge field is the gauge boson, which is the photon in the case of quantum electrodynamics.
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