New N = (0,4) AdS3 near-horizons in Type IIB

We construct new families of N = (0, 4) AdS(3) x S-2 x S2 x S-1 backgrounds fibred over a 2d Riemann surface in Type IIB string theory. These solutions are obtained by extracting the near-horizon limit of D3-brane box configurations, consisting of D3-D5-NS5 branes ending on D5 ' -NS5 ' background branes. We relate our families of solutions to previous AdS(3) x S-2 x CY2 and AdS(3) x S-3 x S-2 solutions to Type IIA recently constructed in the literature. We construct explicit 2d quiver CFTs associated to the D3-brane box configurations, and check that the central charges match the holographic result. We extend our solutions to include D7-branes, and show that a subclass of these solutions can be interpreted in terms of D3-D5-NS5 defect branes embedded in a 5d fixed point theory. This is explicitly realised by linking our solutions to a 6d domain wall that asymptotes locally the AdS(6) x S-2 x Sigma (2) solution T-dual to the Brandhuber-Oz vacuum.

Automated summary

New families of background solutions in Type IIB string theory are constructed, revealing connections to previously studied solutions. By introducing different types of branes, the types of solutions are expanded. The study finds that these solutions can be mathematically interpreted as specific branes embedded in fixed point theories.