OKC/Nordita High-Energy Physics Theory seminar

Stringy AdS3/CFT2 dualities

by Lorenz Eberhardt (ETH Zurich)

In the first part of the talk, I will discuss some recent work on string theory on the background AdS3xS3xS3xS1. After a review of the large N=4 superconformal symmetry the background supports, I will discuss the BPS spectrum from a string theory and supergravity point of view. I will make an explicit proposal for the dual CFT in the case where the two D5-brane charges are multiples of each other, the matching BPS spectrum will give convincing evidence in favour of this proposal. In the second part of the talk, I will present some new explicit examples of N=(2,2) dualities, which are obtained by orbifolding the familiar dualities of AdS3xS3xT4 and the symmetric orbifold of T4. I will explain various subtleties and checks of the proposal.