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arXiv · hep-th/9909186

The Hadamard Function and the Feynman Propagator in the AdS/CFT Correspondence

Shijong Ryang
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Abstract

We construct the retarded Green function and the Hadamard function in the Lorentzian (d+1)-dimensional anti-de Sitter spacetime for the Poincaré coordinate by performing the mode integration directly. We explore the structure of singularities for the position-space Feynman propagator derived from them. The boundary scaling limits of the bulk Feynman propagator yield the bulk-boundary propagator and the boundary conformal correlation function with an extra factor.

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Shijong Ryang. 1999-09-27. The Hadamard Function and the Feynman Propagator in the AdS/CFT Correspondence. https://doi.org/10.1016/s0370-2693(99)01260-5

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