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On field redefinitions and exact solutions in string theory
String backgrounds associated with gauged $G/H$ WZNW models in general depend non-trivially on $\alpha'$. We note, however, that there exists a local covariant $\a'$-dependent field redefinition that relates the exact metric-dilaton background corresponding to the $SL(2,R)/U(1)$ model to i...
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| Lenguaje: | eng |
| Publicado: |
1993
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| Acceso en línea: | https://dx.doi.org/10.1016/0370-2693(93)91372-T http://cds.cern.ch/record/252574 |