Calculation of the renormalized two-point function by adiabatic regularization
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We calculate a renormalized two-point function using the adiabatic regularization method. We study the conformally and minimally coupled cases for massless and massive scalar fields in full detail. We reproduce previous results in a rigorous mathematical form and clarify some empirical approximations and bounds. We consider some applications to inflationary models.
two-point function, adiabatic regularization, de Sitter phase
CitationHaro, J. Calculation of the renormalized two-point function by adiabatic regularization. "Theoretical and mathematical physics", Novembre 2010, vol. 165, núm. 2, p. 1490-1499.