Nonperturbative Instability of AdS5 x S5/Zk
Abstract
We study the AdS/CFT correspondence with boundary conditions AdS5 x S5/Zk, where the Zk acts freely but breaks all supersymmetry. While there are closed string tachyons at small 't Hooft coupling, there are no tachyons at large coupling. Nevertheless, we show that there is a nonperturbative instability directly analogous to the decay of the Kaluza-Klein vacuum. We discuss the implications of this instability for the strongly coupled dual field theory, and compare with earlier studies of this theory at weak coupling.
0