Irreversibility in quantum field theory
Quantum Physics
2016-09-08 v1 High Energy Physics - Theory
Abstract
It is shown how the programme of decoherence can be applied in the context of quantum field theory. To illustrate the role of gauge invariance, we first discuss the charge superselection rule in quantum electrodynamics in some detail. We then present an example where macroscopic electromagnetic fields are ``measured" through interaction with charges and thereby rendered classical.
Cite
@article{arxiv.quant-ph/9501004,
title = {Irreversibility in quantum field theory},
author = {Claus Kiefer},
journal= {arXiv preprint arXiv:quant-ph/9501004},
year = {2016}
}
Comments
7 pages, LATEX, Contribution to the Clausthal-Symposium (August 1994)