On Free Field Realizations of Strings in BTZ

Details On Free Field Realizations of Strings in BTZ On Free Field Realizations of Strings in BTZ

2003-04-02

arxiv.org/abs/hep-th/0304009v2

Int.J.Mod.Phys. A19 (2004) 1579-1588

Physics

High Energy Physics

High Energy Physics - Theory

11 pages, latex; references added, email address changed

Scientific paper

10.1142/S0217751X04017859

We discuss realizations of the SL(2,R) current algebra in the hyperbolic basis using free scalar fields. It has been previously shown by Satoh how such a realization can be used to describe the principal continuous representations of SL(2,R). We extend this work by introducing another realization that corresponds to the principal discrete representations of SL(2,R). We show that in these realizations spectral flow can be interpreted as twisting of a free scalar field. Finally, we discuss how these realizations can be obtained from the BTZ Lagrangian.

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