Placing limits on the spin-torsion fluctuation from the stability of Friedmann solution and COBE data
classification
🌌 astro-ph
keywords
cobedatafluctuationfriedmannperturbationsspin-torsionstabilitybianchi
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The gravitational stability of Friedmann metric with respect to homogeneous and isotropic perturbations in Einstein-Cartan cosmology is used together with the COBE data to place a limit on the spin-torsion primordial density fluctuation.Cosmological perturbations in Bianchi type III models are shown to have no contributions from torsion at the early stages of the Universe.
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