Tuesday, August 7, 2012

1208.0981 (Norihiro Tanahashi et al.)

Instability in near-horizon geometries of even-dimensional Myers-Perry
black holes
   [PDF]

Norihiro Tanahashi, Keiju Murata
We study the gravitational, electromagnetic and scalar field perturbations on the near-horizon geometries of the even-dimensional extremal Myers-Perry black holes. By dimensional reduction, the perturbation equations are reduced to effective equations of motion in AdS$_2$. We find that some modes in the gravitational perturbations violate the Breitenl\"ohner-Freedman bound in AdS$_2$. This result suggests that the even-dimensional (near-)extremal Myers-Perry black holes are unstable against gravitational perturbations. We also discuss implications of our results to the Kerr-CFT correspondence.
View original: http://arxiv.org/abs/1208.0981

No comments:

Post a Comment