Strings in AdS_3 and the SL(2,R) WZW Model. Part 3: Correlation Functions

Details Strings in AdS_3 and the SL(2,R) WZW Model. Part 3: Correlation Functions Strings in AdS_3 and the SL(2,R) WZW Model. Part 3: Correlation Functions

2001-11-20

arxiv.org/abs/hep-th/0111180v2

Phys.Rev.D65:106006,2002

Physics

High Energy Physics

High Energy Physics - Theory

87 pages, 7 figures; minor changes

Scientific paper

10.1103/PhysRevD.65.106006

We consider correlation functions for string theory on AdS_3. We analyze their singularities and we provide a physical interpretation for them. We explain which worldsheet correlation functions have a sensible physical interpretation in terms of the boundary theory. We consider the operator product expansion of the four point function and we find that it factorizes only if a certain condition is obeyed. We explain that this is the correct physical result. We compute correlation functions involving spectral flowed operators and we derive a constraint on the amount of winding violation.

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