Surface Defects from Fractional Branes -- II

Abstract

A generic half-BPS surface defect of $\mathcal{N}=4$ supersymmetric U$(N)$ Yang-Mills theory is described by a partition of $N=n_1+\dots +n_M$ and a set of $4M$ continuous parameters. We show that such a defect can be realized by $n_I$ stacks of fractional D3-branes in Type II B string theory on a ${\mathbb{Z}}_M$ orbifold background in which the brane world-volume is partially extended along the orbifold directions. In this set up we show that the $4M$ continuous parameters correspond to constant background values of certain twisted closed string scalars of the orbifold. These results extend and generalize what we have presented for the simple defects in a previous paper.

arXiv comment37 pages

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Cited by in corpus (4)

• Localization vs holography in $4d$ $\mathcal{N}=2$ quiver theories
• Surface Defects from Fractional Branes -- I
• Surface Operators in Superspace
• Strong-coupling results for $\mathcal{N}=2$ superconformal quivers and holography