Most general theory of 3d gravity: covariant phase space, dual diffeomorphisms, and more
Most general theory of 3d gravity: covariant phase space, dual diffeomorphisms, and more
A bstract We show that the phase space of three-dimensional gravity contains two layers of dualities: between diffeomorphisms and a notion of “dual diffeomorphisms” on the one hand, and between first order curvature and torsion on the other hand. This is most elegantly revealed and understood when studying the most …