Narrow Results

In the works of Achúcarro and Townsend and also by Witten, a duality between three-dimensional Chern–Simons gauge theories and gravity was established. In all cases, the results made use of the field equations. In a previous work, we were capable of generalizing Witten’s work to the off-shell cases, as well as to the four-dimensional Yang–Mills theory with de Sitter gauge symmetry. The price we paid is that curvature and torsion must obey some constraints under the action of the interior derivative. These constraints implied on the partial breaking of diffeomorphism invariance. In this work, we first formalize our early results in terms of fiber bundle theory by establishing the formal aspects of the map between a principal bundle (gauge theory) and a coframe bundle (gravity) with partial breaking of diffeomorphism invariance. Then, we study the effect of the constraints on the homology defined by the interior derivative. The main result is the emergence of a non-trivial homology in Riemann–Cartan manifolds.

We find a new evidence of a gauge/gravity duality: an explicit correspondence between eigenvalue densities and geometries. We examine the duality between IIA supergravity solutions and SU(2|4) symmetric gauge theories, which are BMN matrix model, N = 8 super Yang-Mills theory on R × S² and N = 4 super Yang-Mills theory on R × S³/Z_k. We show that the corresponding geometries are realized as the solution to the saddle point equations in the gauge theories, and that typical scales of the geometries are characterized by the range of the eigenvalue distribution.