AdS/CFT dualities involving large 2d \(N=4\) superconformal symmetry. (English) Zbl 0989.81088
Summary: We study the duality between string theory on \(\text{AdS}_3 \times S^3\times S^3\) and two-dimensional conformal theories with large \(N=4\) superconformal algebra \(\mathcal A_\gamma\). We discuss configurations of intersecting branes which give rise to such near-horizon geometries. We compute the Kaluza-Klein spectrum and propose that the boundary superconformal theory can be described by a sigma model on a suitable symmetric product space with a particular choice of anti-symmetric two-form.
MSC:
81T30 | String and superstring theories; other extended objects (e.g., branes) in quantum field theory |
83E30 | String and superstring theories in gravitational theory |
81T60 | Supersymmetric field theories in quantum mechanics |
81T10 | Model quantum field theories |
81T40 | Two-dimensional field theories, conformal field theories, etc. in quantum mechanics |