Multipole solutions in metric--affine gravity

Details Multipole solutions in metric--affine gravity Multipole solutions in metric--affine gravity

1998-04-23

arxiv.org/abs/gr-qc/9804062v1

Phys.Lett. A244 (1998) 317-323

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

13 pages, Revtex, to appear in Phys. Lett. A

Scientific paper

10.1016/S0375-9601(98)00360-0

Above Planck energies, the spacetime might become non--Riemannian, as it is known fron string theory and inflation. Then geometries arise in which nonmetricity and torsion appear as field strengths, side by side with curvature. By gauging the affine group, a metric affine gauge theory emerges as dynamical framework. Here, by using the harmonic map ansatz, a new class of multipole like solutions in the metric affine gravity theory (MAG) is obtained.

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