Dynamics and causality constraints in field theory
高能物理 - 理论
2007-05-23 v1 广义相对论与量子宇宙学
高能物理 - 唯象学
量子物理
摘要
We discuss the physical meaning and the geometric interpretation of causality implementation in classical field theories. Causality is normally implemented through kinematical constraints on fields but we show that in a zero-distance limit they also carry a dynamical information, which calls for a revision of our standard concepts of interacting fields. The origin of infinities and other inconsistencies in field theories is traced to fields defined with support on the lightcone; a finite and consistent field theory requires a lightcone generator as the field support.
引用
@article{arxiv.hep-th/9708096,
title = {Dynamics and causality constraints in field theory},
author = {Manoelito M. de Souza},
journal= {arXiv preprint arXiv:hep-th/9708096},
year = {2007}
}
备注
10 pages, Revtex, 4 ps figures