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Segmented strings coupled to a B-field

David Vegh Harvard University CMSA, Institute for Advanced Study, CERN

Publications of CMSA of Harvard mathscidoc:1702.38057

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) 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.
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@inproceedings{davidsegmented,
  title={Segmented strings coupled to a B-field},
  author={David Vegh},
  url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170207234813775259279},
}
David Vegh. Segmented strings coupled to a B-field. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170207234813775259279.
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