Semiclassical Strings on Curved Branes

TL;DR

This paper explores semiclassical string solutions in curved brane backgrounds, revealing new insights into string dynamics in complex geometries with fluxes and their S-dual counterparts.

Contribution

It introduces specific semiclassical string solutions in the near horizon geometry of curved NS5-branes with background fluxes, highlighting differences under S-duality.

Findings

Identified giant magnon, single spike, and folded string solutions.

Analyzed effects of background NS-NS flux on string configurations.

Compared string dynamics before and after S-duality transformation.

Abstract

We study semiclassical strings in the near horizon geometry of certain curved branes. We investigate the rigidly rotating strings in the near horizon geometry of NS5-branes wrapped on AdS3 x S3 and in the presence of background NS-NS flux. We study several string solutions corresponding to giant magnon, single spike and more general folded strings for the fundamental string in this background. We comment that in the S-dual background the situation changes drastically.