New AdS2/CFT1 pairs from AdS3 and monopole bubbling

We present general results on generating AdS(2) solutions to Type II supergravity from AdS(3) solutions via U(1) and SL(2) T-dualities. We focus on a class of Type IIB solutions with small MATHEMATICAL SCRIPT CAPITAL N � = 4 supersymmetry, that we show can be embedded into a more general class of solutions obtained by double analytical continuation from AdS(3) geometries with small MATHEMATICAL SCRIPT CAPITAL N � = (0, 4) supersymmetry constructed in the literature. We then start the analysis of the superconformal quantum mechanics dual to the MATHEMATICAL SCRIPT CAPITAL N � = 4 backgrounds focusing on a subclass of AdS(2) x S-3 x 𝕋�(3) solutions foliated over a Riemann surface. We show that the associated supersymmetric quantum mechanics describes monopole bubbling in 4d MATHEMATICAL SCRIPT CAPITAL N � = 2 supersymmetric gauge theories living in D3-D7 branes, as previously discussed in the literature. Therefore, we propose that our solutions provide a geometrical description via holography of monopole bubbling in 4d MATHEMATICAL SCRIPT CAPITAL N � = 2 SCFTs. We check our proposal with the computation of the central charge.