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Dark energy and Exact solutions in general relativity

Shortcuts: Differences, Similarities, Jaccard Similarity Coefficient, References.

Difference between Dark energy and Exact solutions in general relativity

Dark energy vs. Exact solutions in general relativity

In physical cosmology and astronomy, dark energy is an unknown form of energy which is hypothesized to permeate all of space, tending to accelerate the expansion of the universe. In general relativity, an exact solution is a Lorentzian manifold equipped with tensor fields modeling states of ordinary matter, such as a fluid, or classical nongravitational fields such as the electromagnetic field.

Similarities between Dark energy and Exact solutions in general relativity

Dark energy and Exact solutions in general relativity have 9 things in common (in Unionpedia): Casimir effect, Cosmological constant, Einstein field equations, Friedmann–Lemaître–Robertson–Walker metric, General relativity, Quintessence (physics), Scalar field, Scholarpedia, Stress–energy tensor.

Casimir effect

In quantum field theory, the Casimir effect and the Casimir–Polder force are physical forces arising from a quantized field.

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Cosmological constant

In cosmology, the cosmological constant (usually denoted by the Greek capital letter lambda: Λ) is the value of the energy density of the vacuum of space.

Cosmological constant and Dark energy · Cosmological constant and Exact solutions in general relativity · See more »

Einstein field equations

The Einstein field equations (EFE; also known as Einstein's equations) comprise the set of 10 equations in Albert Einstein's general theory of relativity that describe the fundamental interaction of gravitation as a result of spacetime being curved by mass and energy.

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Friedmann–Lemaître–Robertson–Walker metric

The Friedmann–Lemaître–Robertson–Walker (FLRW) metric is an exact solution of Einstein's field equations of general relativity; it describes a homogeneous, isotropic, expanding or contracting universe that is path connected, but not necessarily simply connected.

Dark energy and Friedmann–Lemaître–Robertson–Walker metric · Exact solutions in general relativity and Friedmann–Lemaître–Robertson–Walker metric · See more »

General relativity

General relativity (GR, also known as the general theory of relativity or GTR) is the geometric theory of gravitation published by Albert Einstein in 1915 and the current description of gravitation in modern physics.

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Quintessence (physics)

In physics, quintessence is a hypothetical form of dark energy, more precisely a scalar field, postulated as an explanation of the observation of an accelerating rate of expansion of the universe.

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Scalar field

In mathematics and physics, a scalar field associates a scalar value to every point in a space – possibly physical space.

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Scholarpedia

Scholarpedia is an English-language online wiki-based encyclopedia with features commonly associated with open-access online academic journals, which aims to have quality content.

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Stress–energy tensor

The stress–energy tensor (sometimes stress–energy–momentum tensor or energy–momentum tensor) is a tensor quantity in physics that describes the density and flux of energy and momentum in spacetime, generalizing the stress tensor of Newtonian physics.

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The list above answers the following questions

Dark energy and Exact solutions in general relativity Comparison

Dark energy has 141 relations, while Exact solutions in general relativity has 89. As they have in common 9, the Jaccard index is 3.91% = 9 / (141 + 89).

References

This article shows the relationship between Dark energy and Exact solutions in general relativity. To access each article from which the information was extracted, please visit:

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