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Abstract: (Springer)
We study warped flat geometries in three-dimensional topologically massive gravity. They are quotients of global warped flat spacetime, whose isometries are given by the 2-dimensional centrally extended Poincaré algebra. The latter can be obtained as a certain scaling limit of Warped AdS3_{3} space with a positive cosmological constant. We discuss the causal structure of the resulting spacetimes using projection diagrams. We study their charges and thermodynamics, together with asymptotic Killing vectors preserving a consistent set of boundary conditions including them. The asymptotic symmetry group is given by a Warped CFT algebra, with a vanishing current level. A generalization of the derivation of the Warped CFT Cardy formula applies in this case, reproducing the entropy of the warped flat cosmological spacetimes.
Note:
  • 44 pages, 4 figures, 1 Mathematica file, added clarifications, matches published version
  • Black Holes
  • Gauge-gravity correspondence
  • Space-Time Symmetries
  • gravitation: massive
  • field theory: conformal
  • mass: topological
  • dimension: 3
  • warped
  • space-time
  • isometry