A new AdS_4/CFT_3 Dual with Extended SUSY and a Spectral Flow

Understand

We construct a new AdS_4 background in Type IIB supergravity by means of a non-Abelian T-duality transformation on the Type IIA dual of ABJM.

• The analysis of probe and particle-like branes suggests a dual CFT in which each of the gauge groups is doubled.
• A common feature of non-Abelian T-duality is that in the absence of any global information coming from String Theory it gives rise to non-compact dual backgrounds, with coordinates living in the Lie algebra of the Lie group involved in the dualization.
• In backgrounds with CFT duals this poses obvious problems to the CFTs.