On the topological reduction from the affine to the orthogonal gauge theory of gravity

Research paper by R. F. Sobreiro, V. J. Vasquez Otoya

Indexed on: 19 Sep '10Published on: 19 Sep '10Published in: High Energy Physics - Theory


Making use of the fibre bundle theory to describe metric-affine gauge theories of gravity we are able to show that metric-affine gauge theory can be reduced to the Riemann-Cartan one. The price we pay for simplifying the geometry is the presence of matter fields associated with the nonmetric degrees of freedom of the original setup. Also, a possible framework for the construction of a quantum gravity theory is developed along the text.