Nonlocal vertices, UV "opaqueness" and causality

Chin, Paokuan and Tomboulis, E. T. (2022) Nonlocal vertices, UV "opaqueness" and causality. Il nuovo cimento C, 45 (2). pp. 1-6. ISSN 1826-9885

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Abstract

Nonlocal field theories have seen a revival of interest in recent years. Such theories possess nonlocal vertices characterized by some nonlocality length scale l. This amounts to loss of resolution for scales finer than l. There are many physical arguments for expecting such resolution loss for l of the order of Planck length. The wavelet decomposition of fields, which analyses field configurations in terms of successive resolution scales, is a natural framework for addressing this as outlined here. Some recent results on unitarity and causality in the presence of nonlocal vertices are also briefly mentioned.

Item Type: Article
Subjects: 500 Scienze naturali e Matematica > 530 Fisica
Depositing User: Marina Spanti
Date Deposited: 05 May 2022 09:25
Last Modified: 05 May 2022 09:25
URI: http://eprints.bice.rm.cnr.it/id/eprint/21842

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