Classical Unified Field Theories

Classical Unified Field Theories

Since the 19th century, some physicists have attempted to develop a single theoretical framework that can account for the fundamental forces of nature – a unified field theory. Classical unified field theories are attempts to create a unified field theory based on classical physics. In particular, unification of gravitation and electromagnetism was actively pursued by several physicists and mathematicians in the years between World War I and World War II. This work spurred the purely mathematical development of differential geometry. Albert Einstein is the best known of the many physicists who attempted to develop a classical unified field theory.

This article describes various attempts at a classical (non-quantum), relativistic unified field theory. For a survey of classical relativistic field theories of gravitation that have been motivated by theoretical concerns other than unification, see Classical theories of gravitation. For a survey of current work toward creating a quantum theory of gravitation, see quantum gravity.

Read more about Classical Unified Field TheoriesOverview, Early Work, Differential Geometry and Field Theory, Weyl's Infinitesimal Geometry, Kaluza's Fifth Dimension, Eddington's Affine Geometry, Einstein's Geometric Approaches, Schrödinger's Pure-affine Theory, Later Work

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