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Does anyone know theposition spacerepresentation of the Feynman propagator on the cylinder? The momentum space representation is the same as in Minkowski 2D space, but the position space representation is different because the integrals over momenta are now sums. Or could someone point me to some specific literature where I could find it?

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# Feynman propagator on the cylinder - position space representation

**Physics Forums | Science Articles, Homework Help, Discussion**