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arXiv · 1402.3650

A Kaluza--Klein-like model of the gauge theory of gravity and its cosmological meaning

Jia-An Lu
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Abstract

A new Kaluza--Klein-like (KK-like) model of the de Sitter gauge theory of gravity is constructed from the geometry related to the gauge-invariant expressions of the gravitational fields. The model reduces to general relativity with a cosmological constant Lambda when the spin tensor is equal to zero. Moreover, it is shown that among the R-2Lambda+betaS^{abc}S_{abc} models, where beta is a dimensionless parameter and S_{abc} denotes torsion, the KK-like model is the only one that may avert the big-bang singularity of the Robertson--Walker universe filled with a spin fluid.

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Jia-An Lu. 2014-02-15. A Kaluza--Klein-like model of the gauge theory of gravity and its cosmological meaning. https://arxiv.org/abs/1402.3650

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