Cosets as Gauge Slices in Su(1,1) Strings

  title={Cosets as Gauge Slices in Su(1,1) Strings},
  author={Stephen Y Hwang},
We consider a string theory based on an SU(1, 1) Wess-Zumino-NovikovWitten model and an arbitrary unitary conformal field theory. We show that the solutions of the Virasoro conditions, in the unitarity regime of the SU(1, 1) theory, are states which lie in the Euclidean coset SU(1, 1)/U(1). This shows the validity, at the quantum level, of a time-like type of gauge in these models. There has recently been a substantial interest in Wess-Zumino-Novikov-Witten models (WZNW) based on non-compact… CONTINUE READING
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