Large Spin Strings in AdS_3

TL;DR

This paper analyzes large spin string solutions in AdS_3 with NS-NS flux, revealing a constant anomalous correction to energy-spin relation, contrasting with R-R backgrounds.

Contribution

It constructs explicit string solutions in AdS_3 with NS-NS flux using SL(2,R) WZW theory and finds a novel constant correction to the energy-spin relation.

Findings

Anomalous correction is constant, not logarithmic.

Solutions derived from SL(2,R) WZW theory.

Contrast with R-R background behavior.

Abstract

We consider strings with large spin in AdS_3xS^3xM with NS-NS background. We construct the string configurations as solutions of SL(2,R) WZW theory. We compute the relation between the space-time energy and spin, and show that the anomalous correction is constant, and not logarithmic in the spin. This is in contrast to the S-dual background with R-R charge where the anomalous correction is logarithmic.