Flat-space limit of defect correlators and stringy AdS form factors

2024/11/07 by Luis F. Alday, Alday, Luis F., Xinan Zhou +1 · 3 citations
Computer Science · Materials Science · #Cellular Automata and Applications #FOS: Physical sciences #High Energy Physics - Theory (hep-th) #Optimization and Search Problems #Solidification and crystal growth phenomena

paper · pdf · doi:10.48550/arxiv.2411.04378

openalex publication_date 2024/11/07 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We study AdS form factors, given by the Mellin representation for CFT correlators of local operators in the presence of extended defects. We propose a formula for taking (and expanding around) the flat-space limit. This formula relates the flat-space form factors for particles scattering off an extended object to the high-energy limit of the Mellin amplitude, via a Borel transform. We check the validity of our proposal in a number of examples. As an application, we study the two-point function of local operators in the presence of a 't Hooft loop in 4d N=4 SYM, and compute the first few orders of stringy corrections to the AdS form factor of gravitons scattering off a D1 brane.

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