Splitting spinning strings in AdS/CFT

TL;DR

This paper investigates the semiclassical decay process of large spinning strings in AdS/CFT, identifying conserved charges and exploring implications for the dual gauge theory's non-planar sector.

Contribution

It introduces a detailed analysis of string splitting in AdS/CFT, computing conserved charges and establishing relations, advancing understanding of string decay mechanisms.

Findings

Conserved charges are explicitly computed for the decaying strings.

Functional relations between conserved charges are established.

Preliminary insights into the dual gauge theory's non-planar sector are discussed.

Abstract

We study the semiclassical decay of macroscopic spinning strings in AdS_5 x S^5 through spontaneous splitting of the folded string worldsheet. Based on similar considerations in flat space this decay channel is expected to dominate the full quantum computation. The outgoing strings are uniquely specified by an infinite set of conserved (local) charges with a regular expansion in inverse powers of the initial angular momentum. We compute these charges and determine functional relations between them. Finally, a preliminary discussion of the corresponding calculation in the non-planar sector of the dual gauge theory is presented.