Comments on dipole theories
Dipole theories are interesting for many reasons. On the one hand, the background is deformed, and therefore is a simple example of non-AdS holography. On the other hand, the bulk spacetime can be obtained by a generalized spectra flow, and therefore many properties are inherited from AdS. Furthermore, dipole/CFT duality is closely related to Kerr/CFT correspondence. By studying dipole theory, we could learn some information about the CFT that is dual to Kerr. In this talk I will comment on dipole/CFT duality, and string sigma models on dipole backgrounds.