Three dimensional gravity from ISO(2,1) coset models
Abstract
Starting from a WZWN action in the ISO(2,1) Poincare' group which describes a bosonized spinning string in 2+1 Minkowski space-time, we show that a sequence of non-trivial compactifications leads to the description of a spinless string which moves in a (linear dilaton) vacuum, AdS3 or BTZ black hole background. Other solutions are also obtained and their T-duals analyzed.
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