Actions for particles and strings and Chern-Simons gravity

Abstract

We consider actions for particles and strings, including twistorial descriptions on 4d Minkowski and AdS${}_5$ 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.

arXiv comment20 pages

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