Segmented strings coupled to a B-field
- 48 Downloads
In this paper we study segmented strings in AdS3 coupled to a background two-form whose field strength is proportional to the volume form. By changing the coupling, the theory interpolates between the Nambu-Goto string and the SL(2, ℝ) Wess-Zumino-Witten model. In terms of the kink momentum vectors, the action is independent of the coupling and the classical theory reduces to a single discrete-time Toda-type theory. The WZW model is a singular point in coupling space where the map into Toda variables degenerates.
KeywordsIntegrable Field Theories Long strings AdS-CFT Correspondence Bosonic Strings
This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.
- X. Artru, Classical string phenomenology. 1. How strings work, Phys. Rept. 97 (1983) 147 [INSPIRE].