A cosmological model in Weyl-Cartan spacetime

Details A cosmological model in Weyl-Cartan spacetime A cosmological model in Weyl-Cartan spacetime

2001-01-15

arxiv.org/abs/gr-qc/0101050v2

Class.Quant.Grav. 18 (2001) 677-694

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

19 pages, 5 figures, typos corrected, uses IOP style file

Scientific paper

10.1088/0264-9381/18/4/308

We present a cosmological model for early stages of the universe on the basis of a Weyl-Cartan spacetime. In this model, torsion $T^{\alpha}$ and nonmetricity $Q_{\alpha \beta}$ are proportional to the vacuum polarization. Extending earlier work of one of us (RT), we discuss the behavior of the cosmic scale factor and the Weyl 1-form in detail. We show how our model fits into the more general framework of metric-affine gravity (MAG).

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