Nonrelativistic strings and the limits of $ \mathcal{N}=2 $ dualities

TL;DR

This paper formulates nonrelativistic string theories within specific supergravity backgrounds, explores T-duality in these contexts, and discusses implications for nonrelativistic limits of $ ext{N}=2$ supersymmetric gauge theories.

Contribution

It introduces a nonrelativistic formulation of F-string theory for $ ext{N}=2$ geometries, analyzes T-duality transformations, and examines the impact of flavor branes on the nonrelativistic limit of gauge theories.

Findings

Formulated nonrelativistic sigma models over TSNC backgrounds.

Analyzed T-duality transformations in nonrelativistic settings.

Discussed effects of flavor branes on $ ext{N}=2$ quiver theories.

Abstract

We carry out the formulation of nonrelativistic (NR) F-string theory for $ \mathcal{N}=2 $ Gaiotto-Maldacena class of geometries in type IIA supergravity. Considering the NS-NS sector, we reduce the type IIA theory into the NR sigma models those are formulated over the nonrelativistic target space geometries known as the torsional String Newton-Cartan (TSNC) backgrounds. Using these TSNC data, we write down the sigma model action and explore several properties in the semiclassical limit. In particular, we carry out the \emph{canonical} analysis of the T-duality transformation rules in TSNC background. Following the standard canonical prescription of obtaining T-duality transformations, we map these TSNC sigma models to relativistic sigma models propagating over general relativity backgrounds. Finally, we conclude with a detailed discussion on the effects of adding \emph{flavour} branes and thereby taking the corresponding TSNC limit in the bulk description of $ \mathcal{N}=2 $ quivers. We compute various field theory observables in the nonrelativistic limit and outline the structure of the NR Lagrangian following the light cone reduction of $ \mathcal{N}=2 $ SYM theory.