Quasinormal modes of warped $AdS_3$ black holes and AdS/CFT correspondence

Understand

We calculate the scalar quasinormal modes of warped $AdS_3$ black holes analytically.

• We find that in general they are not in agreement with the prediction of the usual AdS/CFT correspondence.
• Nevertheless, for the black hole not deviating far from BTZ black hole, the quasinormal frequencies are still well consistent with AdS/CFT correspondence.