Superconformal Monodromy Defects in $\mathcal{N}$=4 SYM and LS theory

TL;DR

This paper constructs and analyzes supergravity solutions dual to two-dimensional superconformal defects in four-dimensional SCFTs, exploring their properties, monodromies, and relations via deformations and RG flows.

Contribution

It introduces new supergravity solutions for superconformal defects with monodromy and mass deformations, connecting different SCFTs through bulk deformations and RG flows.

Findings

Computed defect central charges as functions of monodromy.

Derived supersymmetric Renyi entropies for the defects.

Established connections between defects in different SCFTs via deformations.

Abstract

We study type IIB supergravity solutions that are dual to two-dimensional superconformal defects in $d=4$ SCFTs which preserve $\mathcal{N}=(0,2)$ supersymmetry. We consider solutions dual to defects in $\mathcal{N}=4$ SYM theory that have non-trivial monodromy for $U(1)^3\subset SO(6)$ global symmetry and we also allow for the possibility of conical singularities. In addition, we consider the addition of fermionic and bosonic mass terms that have non trivial dependence on the spatial directions transverse to the defect, while preserving the superconformal symmetry of the defect. We compute various physical quantities including the central charges of the defect expressed as a function of the monodromy, the on-shell action as well as associated supersymmetric Renyi entropies. Analogous computations are carried out for superconformal defects in the $\mathcal{N}=1$, $d=4$ Leigh-Strassler SCFT. We also show that the defects of the two SCFTs are connected by a line of bulk marginal mass deformations and argue that they are also related by bulk RG flow.