Journal of Modern Physics

Volume 11, Issue 2 (February 2020)

ISSN Print: 2153-1196   ISSN Online: 2153-120X

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How to Explicitly Calculate Feynman and Wheeler Propagators in the ADS/CFT Correspondence

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DOI: 10.4236/jmp.2020.112019    398 Downloads   1,062 Views  


We discuss, giving all necessary details, the boundary-bulk propagators. We do it for a scalar field, with and without mass, for both the Feynman and the Wheeler cases. Contrary to standard procedure, we do not need here to appeal to any unfounded conjecture (as done by other authors). Emphasize that we do not try to modify standard ADS/CFT procedures, but use them to evaluate the corresponding Feynman and Wheeler propagators. Our present calculations are original in the sense of being the first ones undertaken explicitly using distributions theory (DT). They are carried out in two instances: 1) when the boundary is a Euclidean space and 2) when it is of Minkowskian nature. In this last case we compute also three propagators: Feynman’s, Anti-Feynman’s, and Wheeler’s (half advanced plus half retarded). For an operator corresponding to a scalar field we explicitly obtain, for the first time ever, the two points’ correlations functions in the three instances above mentioned. To repeat, it is not our intention here to improve on ADS/CFT theory but only to employ it for evaluating the corresponding Wheeler’s propagators.

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Plastino, A. and Rocca, M. (2020) How to Explicitly Calculate Feynman and Wheeler Propagators in the ADS/CFT Correspondence. Journal of Modern Physics, 11, 304-323. doi: 10.4236/jmp.2020.112019.

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