Interacting quantum fields on a curved background
Romeo Brunetti and Klaus Fredenhagen
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Submission date: 15. Sep. 1997
published in: XIIth International Congress of Mathematical Physics / D. De Wit (ed.)
Cambridge, MA : Internat. Press, 1999. - P. 186 - 190
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A renormalized perturbative expansion of interacting quantum fields on a globally hyperbolic spacetime is performed by adapting of the Bogoliubov Epstein Glaser method to a curved background. The results heavily rely on techniques from microlocal analysis, in particular on Radzikowski's characterization of Hadamard states by wave front sets of Wightman functions.