HET Brown Bag Seminar | Kaluza-Klein Spectrometry for String Theory Compactifications

In this talk, I will present a powerful new method for computing the Kaluza-Klein spectrum of string theory compactifications. This includes geometries with little to no remaining symmetries, hardly accessible to standard methods. I will discuss various applications of this method, including to non-supersymmetric AdS_4 vacua. As I will show, some of these AdS vacua are unstable due to tachyonic Kaluza-Klein modes, while others can be proven to be perturbatively stable. Finally, I will also discuss applications to supersymmetric AdS vacua and the AdS/CFT correspondence