N=8 matter coupled AdS_3 supergravities

TL;DR

This paper constructs N=8 gauged supergravity theories in three dimensions, extending previous work on maximal supergravity, and recovers specific N=(4,4) models related to six-dimensional supergravity compactifications.

Contribution

It derives new gauged D=3, N=8 supergravity models as deformations of ungauged theories, including special cases with known higher-dimensional origins.

Findings

Derived N=8 gauged supergravities with scalar manifold SO(8,n)/(SO(8)×SO(n))

Recovered N=(4,4) theories with SO(4) symmetry

Connected three-dimensional models to six-dimensional supergravity compactifications

Abstract

Following the recent construction of maximal (N=16) gauged supergravity in three dimensions, we derive gauged D=3, N=8 supergravities in three dimensions as deformations of the corresponding ungauged theories with scalar manifolds SO(8,n)/(SO(8)x SO(n)). As a special case, we recover the N=(4,4) theories with local SO(4) = SO(3)_L x SO(3)_R, which reproduce the symmetries and massless spectrum of D=6, N=(2,0) supergravity compactified on AdS_3 x S^3.