Field Redefinition Invariance in Quantum Field Theory
High Energy Physics - Theory
2007-05-23 v2
Abstract
The issue of field redefinition invariance of path integrals in quantum field theory is reexamined. A ``paradox'' is presented involving the reduction to an effective quantum-mechanical theory of a -dimensional free scalar field in a Minkowskian spacetime with compactified spatial coordinates. The implementation of field redefinitions both before and after the reduction suggests that operator-ordering issues in quantum field theory should not be ignored.
Cite
@article{arxiv.hep-th/0003287,
title = {Field Redefinition Invariance in Quantum Field Theory},
author = {Karyn M. Apfeldorf and Horacio E. Camblong and Carlos R. Ordonez},
journal= {arXiv preprint arXiv:hep-th/0003287},
year = {2007}
}
Comments
7 pages