6d surface defects from massive type IIA

TL;DR

This paper constructs a new BPS flow solution in seven-dimensional supergravity with an AdS3 background, explores its holographic dual as a defect 2D SCFT within a 6D (1,0) theory, and describes its brane realization in massive type IIA string theory.

Contribution

It introduces a novel BPS flow solution with a warped AdS3 geometry in minimal 7D supergravity and interprets it holographically as a defect SCFT in 6D, with a detailed brane configuration.

Findings

New BPS flow solution in 7D supergravity with AdS3

Holographic dual as a defect 2D SCFT in 6D (1,0) theory

Brane configuration involving D2, D4, D6, NS5, and D8 branes in massive IIA

Abstract

We present a new BPS flow within minimal $\mathcal{N}=1$ supergravity in seven dimensions describing a warped $\textrm{AdS}_{3}$ background supported by a "dyonic" profile of the three-form. Furthermore, we discuss the holographic interpretation of the above solution in terms of a defect $\textrm{SCFT}_{2}$ inside the 6d $(1,0)$ theory dual to the AdS in the asymptotic region. Finally we provide the brane picture of the aforementioned defect CFT as D2- and wrapped D4-branes ending on a D6 - NS5 - D8 funnel in massive type IIA string theory.