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arXiv · 2001.00020

Warped Flatland

Stéphane Detournay·Wout Merbis·Gim Seng Ng·Raphaela Wutte
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Abstract

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 Poincar\'e algebra. The latter can be obtained as a certain scaling limit of Warped AdS3 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 Cardy formula applies in this case, reproducing the entropy of the warped flat cosmological spacetimes.

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Stéphane Detournay, Wout Merbis, Gim Seng Ng, Raphaela Wutte. 2019-12-31. Warped Flatland. https://doi.org/10.1007/jhep11(2020)061

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