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- Weyl_curvature_hypothesis abstract "The Weyl curvature hypothesis, which arises in the application of Albert Einstein's general theory of relativity to physical cosmology, was introduced by the British mathematician and theoretical physicist Sir Roger Penrose in an article in 1979 in an attempt to provide explanations for two of the most fundamental issues in physics. On the one hand one would like to account for a universe which on its largest observational scales appears remarkably spatially homogeneous and isotropic in its physical properties (and so can be described by a simple Friedmann–Lemaître model), on the other hand there is the deep question on the origin of the second law of thermodynamics.Penrose suggests that the resolution of both of these problems is rooted in a concept of the entropy content of gravitational fields. Near the initial cosmological singularity (the Big Bang), he proposes, the entropy content of the cosmological gravitational field was extremely low (compared to what it theoretically could have been), and started rising monotonically thereafter. This process manifested itself e.g. in the formation of structure through the clumping of matter to form galaxies and clusters of galaxies. Penrose associates the initial low entropy content of the universe with the effective vanishing of the Weyl curvature tensor of the cosmological gravitational field near the Big Bang. From then on, he proposes, its dynamical influence gradually increased, thus being responsible for an overall increase in the amount of entropy in the universe, and so inducing a cosmological arrow of time.The Weyl curvature represents such gravitational effects as tidal fields and gravitational radiation. Mathematical treatments of Penrose's ideas on the Weyl curvature hypothesis have been given in the context of isotropic initial cosmological singularities e.g. in the articles. Penrose views the Weyl curvature hypothesis as a physically more credible alternative to cosmic inflation (a hypothetical phase of accelerated expansion in the early life of the universe) in order to account for the presently observed almost spatial homogeneity and isotropy of our universe.".
- Weyl_curvature_hypothesis wikiPageID "3238937".
- Weyl_curvature_hypothesis wikiPageLength "4746".
- Weyl_curvature_hypothesis wikiPageOutDegree "27".
- Weyl_curvature_hypothesis wikiPageRevisionID "705886154".
- Weyl_curvature_hypothesis wikiPageWikiLink Albert_Einstein.
- Weyl_curvature_hypothesis wikiPageWikiLink Arrow_of_time.
- Weyl_curvature_hypothesis wikiPageWikiLink Big_Bang.
- Weyl_curvature_hypothesis wikiPageWikiLink Category:General_relativity.
- Weyl_curvature_hypothesis wikiPageWikiLink Category:Physical_cosmology.
- Weyl_curvature_hypothesis wikiPageWikiLink Entropy.
- Weyl_curvature_hypothesis wikiPageWikiLink Friedmann–Lemaître–Robertson–Walker_metric.
- Weyl_curvature_hypothesis wikiPageWikiLink Galaxy.
- Weyl_curvature_hypothesis wikiPageWikiLink General_relativity.
- Weyl_curvature_hypothesis wikiPageWikiLink Gravitational_field.
- Weyl_curvature_hypothesis wikiPageWikiLink Gravitational_singularity.
- Weyl_curvature_hypothesis wikiPageWikiLink Gravitational_wave.
- Weyl_curvature_hypothesis wikiPageWikiLink Inflation_(cosmology).
- Weyl_curvature_hypothesis wikiPageWikiLink List_of_unsolved_problems_in_physics.
- Weyl_curvature_hypothesis wikiPageWikiLink Observable_universe.
- Weyl_curvature_hypothesis wikiPageWikiLink Physical_cosmology.
- Weyl_curvature_hypothesis wikiPageWikiLink Roger_Penrose.
- Weyl_curvature_hypothesis wikiPageWikiLink Second_law_of_thermodynamics.
- Weyl_curvature_hypothesis wikiPageWikiLink Tidal_force.
- Weyl_curvature_hypothesis wikiPageWikiLink Universe.
- Weyl_curvature_hypothesis wikiPageWikiLink Weyl_tensor.
- Weyl_curvature_hypothesis wikiPageWikiLink Weyls_postulate.
- Weyl_curvature_hypothesis wikiPageWikiLink White_hole.
- Weyl_curvature_hypothesis wikiPageWikiLinkText "Weyl curvature hypothesis".
- Weyl_curvature_hypothesis wikiPageUsesTemplate Template:Dablink.
- Weyl_curvature_hypothesis wikiPageUsesTemplate Template:Expert_subject.
- Weyl_curvature_hypothesis wikiPageUsesTemplate Template:Reflist.
- Weyl_curvature_hypothesis wikiPageUsesTemplate Template:Roger_Penrose.
- Weyl_curvature_hypothesis subject Category:General_relativity.
- Weyl_curvature_hypothesis subject Category:Physical_cosmology.
- Weyl_curvature_hypothesis type Physic.
- Weyl_curvature_hypothesis type Sub-discipline.
- Weyl_curvature_hypothesis comment "The Weyl curvature hypothesis, which arises in the application of Albert Einstein's general theory of relativity to physical cosmology, was introduced by the British mathematician and theoretical physicist Sir Roger Penrose in an article in 1979 in an attempt to provide explanations for two of the most fundamental issues in physics.".
- Weyl_curvature_hypothesis label "Weyl curvature hypothesis".
- Weyl_curvature_hypothesis sameAs Q2566348.
- Weyl_curvature_hypothesis sameAs Weylkrümmungshypothese.
- Weyl_curvature_hypothesis sameAs Ipotesi_di_curvatura_di_Weyl.
- Weyl_curvature_hypothesis sameAs Hipótese_de_curvatura_de_Weyl.
- Weyl_curvature_hypothesis sameAs m.090j1r.
- Weyl_curvature_hypothesis sameAs Q2566348.
- Weyl_curvature_hypothesis wasDerivedFrom Weyl_curvature_hypothesis?oldid=705886154.
- Weyl_curvature_hypothesis isPrimaryTopicOf Weyl_curvature_hypothesis.