Holographic interfaces in N = 4 SYM: Janus and J-folds

Abstract

We find the holographic dual to the three classes of superconformal Janus interfaces in N = 4 SYM that preserve three-dimensional N = 4, N = 2, and N = 1 supersymmetry. The solutions are constructed in five-dimensional SO(6) maximal gauged supergravity and are then uplifted to type IIB supergravity. Corresponding to each of the three classes of Janus solutions, there are also AdS4× S1× S5 J-fold backgrounds. These J-folds have a non-trivial SL(2, ℤ) monodromy for the axio-dilaton on the S1 and are dual to three-dimensional superconformal field theories.