Unitarization and Causalization of Non-local quantum field theories by Classicalization
Abstract
We suggest that classicalization can cure non-local quantum field theories from acausal divergences in scattering amplitudes, restoring unitarity and causality. In particular, in "trans-non-local" limit, the formation of non-perturbative classical configurations, called classicalons, in scatterings like φφ→ φφ, can avoid typical acausal divergences.
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