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Influence of intrinsic spin in the formation of singularities for inhomogeneous effective dust space-times

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arxiv 1811.12292 v1 pith:JL75WVZO submitted 2018-11-29 gr-qc

Paulo Luz , Filipe C. Mena , Amir Hadi Ziaie This is my paper · ORCID
classification gr-qc
keywords space-timesspincomposeddusteffectivegeneralinhomogeneousintrinsic
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The evolution of inhomogeneous space-times composed of uncharged fermions is studied for Szekeres metrics which have no Killing vectors, in general. Using the Einstein-Cartan theory to include the effects of (intrinsic) matter spin in General Relativity, the dynamics of a perfect fluid with non-null spin degrees of freedom is considered. It is shown that, if the matter is composed by effective dust and certain constraints on the initial data are verified, a singularity will not form. Various special cases are discussed, such as Lema\^itre-Tolman-Bondi and Bianchi I space-times, where the results are further extended or shown explicitly to be verified.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Singularity theorems and the inclusion of torsion in affine theories of gravity

    gr-qc 2019-08 accept novelty 7.0 of 10

    The authors prove new focusing and singularity theorems for Lorentzian manifolds with torsion, covering accelerated time-like and null curves, perfect fluids, and scalar fields.

  2. Friedmann cosmology with hyperfluids

    gr-qc 2024-11 conditional novelty 6.0 of 10

    For a class of hyperfluid models in metric-affine gravity, the FLRW evolution of H(t) and rho(t) keeps the general relativity form, with hypermomentum effects encoded only in modified barotropic indices.

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