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Solutions of the Einstein field equations information


Solutions of the Einstein field equations are metrics of spacetimes that result from solving the Einstein field equations (EFE) of general relativity. Solving the field equations gives a Lorentz manifold. Solutions are broadly classed as exact or non-exact.

The Einstein field equations are

where is the Einstein tensor, is the cosmological constant (sometimes taken to be zero for simplicity), is the metric tensor, is a constant, and is the stress–energy tensor.

The Einstein field equations relate the Einstein tensor to the stress–energy tensor, which represents the distribution of energy, momentum and stress in the spacetime manifold. The Einstein tensor is built up from the metric tensor and its partial derivatives; thus, given the stress–energy tensor, the Einstein field equations are a system of ten partial differential equations in which the metric tensor can be solved for.

Where appropriate, this article will use the abstract index notation.

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Solutions of the Einstein field equations

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relativity. Solving the field equations gives a Lorentz manifold. Solutions are broadly classed as exact or non-exact. The Einstein field equations are G μ ν +...

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Einstein field equations

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In the general theory of relativity, the Einstein field equations (EFE; also known as Einstein's equations) relate the geometry of spacetime to the distribution...

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Exact solutions in general relativity

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relativity, an exact solution is a solution of the Einstein field equations whose derivation does not invoke simplifying assumptions, though the starting point...

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Schwarzschild metric

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metric is the most general spherically symmetric vacuum solution of the Einstein field equations. A Schwarzschild black hole or static black hole is a black...

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Kerr metric

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quasispherical event horizon. The Kerr metric is an exact solution of the Einstein field equations of general relativity; these equations are highly non-linear...

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Roy Kerr

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discovered the Kerr geometry, an exact solution to the Einstein field equation of general relativity. His solution models the gravitational field outside...

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Linearized gravity

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g_{\mu \nu }} is the spacetime metric tensor that represents the solutions of the equation. Although succinct when written out using Einstein notation, hidden...

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Wormhole

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disparate points in spacetime, and is based on a special solution of the Einstein field equations. A wormhole can be visualized as a tunnel with two ends...

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White hole

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holes. In addition to a black hole region in the future, such a solution of the Einstein field equations has a white hole region in its past. This region...

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Friedmann equations

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first derived by Alexander Friedmann in 1922 from Einstein's field equations of gravitation for the Friedmann–Lemaître–Robertson–Walker metric and a perfect...

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Electrovacuum solution

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electrovacuum solution (electrovacuum) is an exact solution of the Einstein field equation in which the only nongravitational mass–energy present is the field energy...

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Albert Einstein

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by the Einstein field equations themselves, not by a new law. Accordingly, Einstein proposed that the field equations would determine the path of a singular...

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Karl Schwarzschild

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Schwarzschild provided the first exact solution to the Einstein field equations of general relativity, for the limited case of a single spherical non-rotating...

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Einstein tensor

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occurs in the Einstein field equations for gravitation that describe spacetime curvature in a manner that is consistent with conservation of energy and...

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Field equation

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Usually, field equations are postulated (like the Einstein field equations and the Schrödinger equation, which underlies all quantum field equations) or obtained...

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Dust solution

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solution is a fluid solution, a type of exact solution of the Einstein field equation, in which the gravitational field is produced entirely by the mass...

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Van Stockum dust

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In general relativity, the van Stockum dust is an exact solution of the Einstein field equations in which the gravitational field is generated by dust rotating...

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ADM formalism

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to the Wheeler–DeWitt equation. There are relatively few known exact solutions to the Einstein field equations. In order to find other solutions, there...

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Regge calculus

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approximations of spacetimes that are solutions to the Einstein field equation. The calculus was introduced by the Italian theoretician Tullio Regge in 1961. The starting...

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