Kaluza-Klein theory

In physics, Kaluza-Klein theory (or KK theory, for short) is a model which sought to unify classical gravity and electromagnetism, first published in 1921. It was discovered by the mathematician Theodor Kaluza that if general relativity is extended to a five-dimensional spacetime, the equations can be separated out into ordinary four-dimensional gravitation plus an extra set, which is equivalent to Maxwell's equations for the electromagnetic field, plus an extra scalar field known as the "dilaton".

Related Topics:
Physics - Gravity - Electromagnetism - 1921 - Theodor Kaluza - General relativity - Four-dimensional - Maxwell's equations - Electromagnetic field - Scalar field - Dilaton

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