Open Spin Chain and Open Spinning String

TL;DR

This paper explores open spinning strings and their duals in SYM, discovering new folded solutions and confirming their energy relations with string theory through integrable spin chain analysis.

Contribution

It introduces a new class of folded open spinning strings and verifies universal relations between open and closed strings using Bethe ansatz.

Findings

Good agreement between SYM spin chain energies and string theory predictions

Discovery of a new class of folded open spinning strings

Verification of universal relations between open and closed strings

Abstract

In this letter, we study the open spinning strings and their SYM duals. A new class of folded open spinning strings is found. At planar one-loop level in SYM, by solving the thermodynamic limit of the Bethe ansatz equations for an integrable open spin chain, we find good agreement with string theory predictions for energies of both circular and folded two-spin solutions. A universal relation between the open and closed spinning strings is verified in the spin chain approach.