Actions for particles and strings and Chern-Simons gravity
arXiv:1706.05021 · doi:10.1103/PhysRevD.96.065019
Abstract
We consider actions for particles and strings, including twistorial descriptions on 4d Minkowski and AdS spacetimes from the point of view of co-adjoint orbits for the isometry group. We also consider the collective coordinate dynamics of singular solutions in Chern-Simons (CS) theories and CS theories of gravity. This is a generalization of the work of Einstein, Infeld and Hoffmann and also has potential points of contact with fluid-gravity correspondence.
20 pages