English

Unitarization and Causalization of Non-local quantum field theories by Classicalization

High Energy Physics - Theory 2016-03-23 v4

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 {\it classicalons}, in scatterings like ϕϕϕϕ\phi\phi\rightarrow \phi\phi, can avoid typical acausal divergences.

Keywords

Cite

@article{arxiv.1505.07357,
  title  = {Unitarization and Causalization of Non-local quantum field theories by Classicalization},
  author = {Andrea Addazi},
  journal= {arXiv preprint arXiv:1505.07357},
  year   = {2016}
}

Comments

More references on non-local QFT and quantum gravity added, few typos corrected. The content is the same