Torsion driving cosmic expansion
Abstract We study a cosmological model based on the canonical Hamiltonian transformation theory. Using a linear-quadratic approach for the free gravitational De Donder–Weyl Hamiltonian $$H_\textrm{Gr}$$ H Gr , the model contains terms describing a deformation of an AdS spacetime and a fully anti-sym...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2023-05-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | https://doi.org/10.1140/epjc/s10052-023-11571-2 |
| _version_ | 1797789621875113984 |
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| author | Johannes Kirsch David Vasak Armin van de Venn Jürgen Struckmeier |
| author_facet | Johannes Kirsch David Vasak Armin van de Venn Jürgen Struckmeier |
| author_sort | Johannes Kirsch |
| collection | DOAJ |
| description | Abstract We study a cosmological model based on the canonical Hamiltonian transformation theory. Using a linear-quadratic approach for the free gravitational De Donder–Weyl Hamiltonian $$H_\textrm{Gr}$$ H Gr , the model contains terms describing a deformation of an AdS spacetime and a fully anti-symmetric torsion in addition to Einstein’s theory. The resulting extension of the Einstein–Cartan theory depends on two initially unknown constants, $$\Omega _\textrm{g}$$ Ω g and $$\Omega _\textrm{s}$$ Ω s . Given an appropriate choice of these parameters resulting from the analysis of asymptotics, numerical calculations were performed with $$\Omega _\mathrm {\Lambda } = 0$$ Ω Λ = 0 . Values from the Planck Collaboration (Aghanim in Cosmol Parameters 641, 6, 2020) were used for all other required cosmological parameters. In this way, it is shown that torsion can explain phenomena commonly attributed to dark energy, and thus can replace Einstein’s cosmological constant. |
| first_indexed | 2024-03-13T01:53:17Z |
| format | Article |
| id | doaj.art-34c325e5b5384c758515f6acba6e0312 |
| institution | Directory Open Access Journal |
| issn | 1434-6052 |
| language | English |
| last_indexed | 2024-03-13T01:53:17Z |
| publishDate | 2023-05-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj.art-34c325e5b5384c758515f6acba6e03122023-07-02T11:24:27ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60522023-05-0183511110.1140/epjc/s10052-023-11571-2Torsion driving cosmic expansionJohannes Kirsch0David Vasak1Armin van de Venn2Jürgen Struckmeier3Frankfurt Institute for Advanced StudiesFrankfurt Institute for Advanced StudiesFrankfurt Institute for Advanced StudiesFrankfurt Institute for Advanced StudiesAbstract We study a cosmological model based on the canonical Hamiltonian transformation theory. Using a linear-quadratic approach for the free gravitational De Donder–Weyl Hamiltonian $$H_\textrm{Gr}$$ H Gr , the model contains terms describing a deformation of an AdS spacetime and a fully anti-symmetric torsion in addition to Einstein’s theory. The resulting extension of the Einstein–Cartan theory depends on two initially unknown constants, $$\Omega _\textrm{g}$$ Ω g and $$\Omega _\textrm{s}$$ Ω s . Given an appropriate choice of these parameters resulting from the analysis of asymptotics, numerical calculations were performed with $$\Omega _\mathrm {\Lambda } = 0$$ Ω Λ = 0 . Values from the Planck Collaboration (Aghanim in Cosmol Parameters 641, 6, 2020) were used for all other required cosmological parameters. In this way, it is shown that torsion can explain phenomena commonly attributed to dark energy, and thus can replace Einstein’s cosmological constant.https://doi.org/10.1140/epjc/s10052-023-11571-2 |
| spellingShingle | Johannes Kirsch David Vasak Armin van de Venn Jürgen Struckmeier Torsion driving cosmic expansion European Physical Journal C: Particles and Fields |
| title | Torsion driving cosmic expansion |
| title_full | Torsion driving cosmic expansion |
| title_fullStr | Torsion driving cosmic expansion |
| title_full_unstemmed | Torsion driving cosmic expansion |
| title_short | Torsion driving cosmic expansion |
| title_sort | torsion driving cosmic expansion |
| url | https://doi.org/10.1140/epjc/s10052-023-11571-2 |
| work_keys_str_mv | AT johanneskirsch torsiondrivingcosmicexpansion AT davidvasak torsiondrivingcosmicexpansion AT arminvandevenn torsiondrivingcosmicexpansion AT jurgenstruckmeier torsiondrivingcosmicexpansion |