The near horizon dynamics in three-dimensional Einstein gravity

Abstract

We study the asymptotic dynamics of 3D gravity with Rindler boundary conditions both in flat and AdS spacetimes. We do this by using the angular quantization and Hamiltonian reduction of the action to the Wess-Zumino-Witten theory on the boundary. We then rewrite the boundary action as a functional of elements of the asymptotic symmetry group.

20 pages, v2: typos fixed; clarification and references added, v3: ref. added, v4: clarification and figures added, references updated, matching the published version