Tuesday, April 17, 2012

1204.3288 (Glenn Barnich et al.)

The flat limit of three dimensional asymptotically anti-de Sitter
spacetimes
   [PDF]

Glenn Barnich, Andrés Gomberoff, Hernán A. González
In order to get a better understanding of holographic properties of gravitational theories with a vanishing cosmological constant, we analyze in detail the relation between asymptotically anti-de Sitter and asymptotically flat spacetimes in three dimensions. This relation is somewhat subtle because the limit of vanishing cosmological constant cannot be naively taken in standard Fefferman-Graham coordinates. After reformulating the standard anti-de Sitter results in Robinson-Trautman coordinates, a suitably modified Penrose limit is shown to connect both asymptotic regimes.
View original: http://arxiv.org/abs/1204.3288

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