Janus solutions in three-dimensional N=8 gauged supergravity

TL;DR

This paper constructs explicit half-BPS Janus solutions in three-dimensional N=8 gauged supergravity, revealing dual interfaces with position-dependent operator expectations and sources in the boundary conformal field theory.

Contribution

It provides the first explicit half-BPS Janus solutions in 3D N=8 gauged supergravity with scalar profiles in the SO(8,1)/SO(8) coset.

Findings

Solutions correspond to interfaces with varying operator expectation values.

The solutions include a jump in the source for a marginal operator.

Explicit scalar field profiles are obtained.

Abstract

Janus solutions are constructed in $d=3$, ${\cal N}=8$ gauged supergravity. We find explicit half-BPS solutions where two scalars in the $SO(8,1)/SO(8)$ coset have a nontrivial profile. These solutions correspond on the CFT side to an interface with a position-dependent expectation value for a relevant operator and a source which jumps across the interface for a marginal operator.