Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
1994-07-21
Phys.Lett. A192 (1994) 153-162
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
14 pages, preprint Cologne-thp-1994-h10
Scientific paper
10.1016/0375-9601(94)90237-2
Recently, the {\it spacelike} part of the $SU(2)$ Yang--Mills equations has been identified with geometrical objects of a three--dimensional space of constant Riemann--Cartan curvature. We give a concise derivation of this Ashtekar type (``inverse Kaluza--Klein") {\it mapping} by employing a $(3+1)$--decomposition of {\it Clifford algebra}--valued torsion and curvature two--forms. In the subcase of a mapping to purely axial 3D torsion, the corresponding Lagrangian consists of the translational and Lorentz {\it Chern--Simons term} plus cosmological term and is therefore of purely topological origin.
Hehl Friedrich W.
~Mielke Eckehard W.
~Obukhov Yuri N.
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