Einstein–Cartan cosmologies
Cosmologies based on General Relativity encompassing an anti-symmetric connection (torsion) can display nice desirable features as the absence of the initial singularity and the possibility of inflation in the early stage of the universe. After briefly reviewing the standard approach to the cosmolog...
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| Veröffentlicht in: | Annals of physics 2019-01, Vol.400, p.64-108 |
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| container_end_page | 108 |
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| container_title | Annals of physics |
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| creator | Bravo Medina, Sergio Nowakowski, Marek Batic, Davide |
| description | Cosmologies based on General Relativity encompassing an anti-symmetric connection (torsion) can display nice desirable features as the absence of the initial singularity and the possibility of inflation in the early stage of the universe. After briefly reviewing the standard approach to the cosmology with torsion, we generalize it to demonstrate that several theories of torsion gravity are possible using different choices of the diffeomorphic invariants in the Lagrangians. As a result, distinct cosmologies emerge. In all of them it is possible that the universe avoids the initial singularity and passes through an initial accelerated expansion. Differences between these theories are highlighted. |
| doi_str_mv | 10.1016/j.aop.2018.11.002 |
| format | Article |
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| fulltext | fulltext |
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| ispartof | Annals of physics, 2019-01, Vol.400, p.64-108 |
| issn | 0003-4916 1096-035X |
| language | eng |
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| source | Elsevier ScienceDirect Journals Complete |
| subjects | ASTROPHYSICS, COSMOLOGY AND ASTRONOMY COSMOLOGICAL INFLATION COSMOLOGY Einstein–Cartan FLUIDS GENERAL RELATIVITY THEORY GRAVITATION LAGRANGIAN FUNCTION SINGULARITY SPIN Spin fluid SYMMETRY Torsion Torsion gravity |
| title | Einstein–Cartan cosmologies |
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