Strong energy condition
WebAn energy condition, in the context of a wide class of spacetime theories (including general relativity), is, crudely speaking, a relation one demands the stress-energy tensor of matter … WebMar 5, 2024 · The strong energy condition essentially states that gravity is never repulsive; it is violated by the cosmological constant (see section 8.2 ). Example 7: An …
Strong energy condition
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WebarXiv.org e-Print archive WebOct 23, 2024 · Many energy conditions are known to not correspond to physical reality—for example, the observable effects of dark energy are well-known to violate the strong energy condition. [2] [3] In general relativity, energy conditions are often used (and required) in proofs of various important theorems about black holes, such as the no hair theorem ...
WebThe following conditions which must be satisfied for the anisotropic NS for a perfect fluid are [28, 40] (1) The pressure and energy density inside the star must be positive, P r , P t , and E...
Webthe strong energy condition holds and the geodesic congruence is timelike. When these hold, the divergence becomes infinite at some finite value of the affine parameter. Thus … homedics shiatsu massage cushion unboxingWebJan 15, 2010 · @article{osti_21413387, title = {Closed cosmological models that satisfy the strong energy condition but do not recollapse}, author = {Calogero, Simone and Heinzle, J Mark}, abstractNote = {We show the existence of a rather general class of closed cosmological models of Bianchi type IX that do not exhibit recollapse but expand for all … homedics shiatsu massage pillow sp22hWebSep 8, 2024 · An energy condition establishes a focussing effect for geodesics, while a causality condition removes the possibility of closed timelike curves and a boundary or initial condition establishes the existence of some trapped region of spacetime. homedics shiatsu massage reclining chairWebWe found that the radial pressure, the anisotropy factor, energy density, metric coefficients, mass function, charge density are regular and well behaved in the stellar interior but the causality... homedics shiatsu massager amazonWebJun 7, 2016 · Strong energy condition and the repulsive character of f (R) gravity. The Raychaudhuri equation enables to examine the whole spacetime structure without … homedics shiatsu massage chair padWebJun 19, 2024 · This energy condition is known as the strong condition. It can also be called the convergency condition in a collapse process. Finally, another energy condition, called as dominant condition, imposes that the local velocity of the matter flux is always smaller than the local light velocity, which is guaranteed if the pressure of the fluid do ... homedics shiatsu massager blackWeb22 hours ago · The shares are currently trading for $33.82 and their $47.11 average price target suggests a gain of 39% over the next 12 months. (See NOG stock forecast) … homedics shiatsu massager not working