Segmented strings coupled to a B-field

  • David Vegh
Open Access
Regular Article - Theoretical Physics


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.


Integrable Field Theories Long strings AdS-CFT Correspondence Bosonic Strings 


Open Access

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Copyright information

© The Author(s) 2018

Authors and Affiliations

  1. 1.Center of Mathematical Sciences and ApplicationsHarvard UniversityCambridgeU.S.A.

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