2025-10-11   22050

The Correlation Function of a Massive Scalar Field: Exponential Decrease at Large Distances

As a technical supplement to articles 00980 and 30983, this article explains how contour integrals may be used to estimate the large-distance behavior of some functions that arise in the analysis of the free scalar quantum field on a spatial lattice.

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www.cphysics.org updated 2025-10-12