Hole argument and Entwurf theory
Main article: Hole argument In general relativity, the hole argument is a "paradox" which much troubled Albert Einstein while developing his famous field equationWhile developing General relativity, Einstein became confused about the gauge invariance The theory of, and observed interactions of, elementary particles in quantum field theory is based on a general symmetry known as gauge theory in the theory. He formulated an argument that led him to conclude that a general relativistic field theory is impossible. He gave up looking for fully generally covariant tensor equations, and searched for equations that would be invariant under general linear transformations only.
The Entwurf theory was the result of these investigations. As it name suggests, it was a sketch of a theory, with the equations of motion supplemented by additional gauge fixing conditions. Simultaneously less elegant and more difficult than General Relativity, Einstein abandoned the theory after realizing that the hole argument was mistaken.
<<Table of Contents Albert Einstein was an ethnically Jewish, German-born theoretical physicist. He is best known for his theories of special relativity and general relativity. Einstein received the 1921 Nobel Prize in Physics "for his services to Theoretical Physics, and especially for his discovery of the law of the photoelectric effect.". He is often | Next>> | Show All>>