Scattering From $(p,q)$-Strings in $\text{AdS}_5 \times \text{S}^5$

TL;DR

This paper investigates the scattering of gravitons from $(p,q)$-strings in AdS/CFT, calculating integrated correlators in $ ext{AdS}_5 imes ext{S}^5$ with line defects, revealing new interactions and applying $SL(2, ext{Z})$ dualities.

Contribution

It provides explicit calculations of integrated stress tensor correlators in the presence of line defects, including instanton effects, and predicts new higher-derivative interactions on $(p,q)$-strings.

Findings

Explicit perturbative and instanton contributions to correlators.

Application of $SL(2, ext{Z})$ transformations to dual defects.

Prediction of new higher-derivative vertices on $(p,q)$-strings.

Abstract

Motivated by understanding the scattering of gravitons and their superpartners from extended $(p, q)$-strings in type IIB string theory via AdS/CFT, we study an integrated two-point function of stress tensor multiplet operators in the presence of a half-BPS line defect in ${\cal N} = 4$ $SU(N)$ super-Yang-Mills theory. We determine this integrated correlator at the five lowest non-trivial orders in $1/\sqrt{N}$ at fixed Yang-Mills coupling and $\theta$ angle. Our calculations are performed explicitly when the line defect is a Wilson line, in which case we find a finite number of perturbative contributions at each order in $1/\sqrt{N}$, as well as instanton contributions. Using $SL(2, \mathbb{Z})$ transformations, our results can also be applied to Wilson-'t Hooft line defects dual to extended $(p, q)$-strings in the bulk. We analyze features of these integrated correlators in the weak coupling expansion by comparing with open-closed amplitudes of type IIB string theory on $\text{AdS}_5\times \text{S}^5$, as well as in its flat space limit. We predict new higher-derivative interaction vertices on the D1-brane and, more generally, on $(p,q)$-strings.