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The term was coined by Albert Einstein, [3] who attempted to unify his general theory of relativity with electromagnetism. The "Theory of Everything" [4] and Grand Unified Theory [5] are closely related to unified field theory, but differ by not requiring the basis of nature to be fields, and often by attempting to explain physical constants of ...
After 1915, when Albert Einstein published the theory of gravity (general relativity), the search for a unified field theory combining gravity with electromagnetism began with a renewed interest. In Einstein's day, the strong and the weak forces had not yet been discovered, yet he found the potential existence of two other distinct forces ...
Inspired by Einstein's approach to a unified field theory and Eddington's idea of the affine connection as the sole basis for differential geometric structure for space-time, Erwin Schrödinger from 1940 to 1951 thoroughly investigated pure-affine formulations of generalized gravitational theory. Although he initially assumed a symmetric affine ...
Albert Einstein was born in Ulm, ... he described his unified field theory in a Scientific American article titled "On the Generalized Theory of Gravitation". [299]
Attempts to create a unified field theory based on classical physics are classical unified field theories. During the years between the two World Wars , the idea of unification of gravity with electromagnetism was actively pursued by several mathematicians and physicists like Einstein, Theodor Kaluza , [ 19 ] Hermann Weyl , [ 20 ] Arthur ...
If the energy–momentum tensor T μν is that of an electromagnetic field in free space, i.e. if the electromagnetic stress–energy tensor = (+) is used, then the Einstein field equations are called the Einstein–Maxwell equations (with cosmological constant Λ, taken to be zero in conventional relativity theory): + = (+).
Peter Gabriel Bergmann (24 March 1915 – 19 October 2002 [2]) was a German-American physicist best known for his work with Albert Einstein on a unified field theory encompassing all physical interactions. He also introduced primary and secondary constraints into mechanics.
This was followed in the 20th century by Albert Einstein's unification of space and time, and of mass and energy through his theory of special relativity. [9] Later, Paul Dirac developed quantum field theory, unifying quantum mechanics and special relativity. [10]