Kinky Strings in AdS_5 x S^5

TL;DR

This paper constructs and analyzes a new family of closed string solutions with kinks in AdS_5 x S^5, revealing unique properties like trivial monodromy matrices and exploring their fluctuations and splitting behaviors.

Contribution

It introduces a novel class of kinked string solutions in AdS_5 x S^5 and examines their integrability and fluctuation characteristics.

Findings

Solutions become folded pulsating strings in certain limits

Monodromy matrices are trivial, leading to vanishing quasi-momenta

Exact Backlund transformations are found with vanishing higher conserved charges

Abstract

We construct a family of closed string solutions with kinks in a subspace of AdS_5 x S^5 and study their properties. In certain limits these solutions become folded pulsating strings, although in general they are made of multiple pulsating rectangles. One unusual feature of these solutions is that their monodromy matrices are trivial, leading to vanishing quasi-momenta. Exact Backlund transformations of these solutions are found, again giving vanishing higher conserved charges. We also consider the fluctuation modes around these solutions as well as the semiclassical splitting of these strings.