N-particle sector of quantum field theory as a quantum open system
High Energy Physics - Theory
2009-10-30 v1
Abstract
We give an exposition of a technique, based on the Zwanzig projection formalism, to construct the evolution equation for the reduced density matrix corresponding to the n-particle sector of a field theory. We consider the case of a scalar field with a interaction as an example and construct the master equation at the lowest non-zero order in perturbation theory.
Cite
@article{arxiv.hep-th/9611155,
title = {N-particle sector of quantum field theory as a quantum open system},
author = {C. Anastopoulos},
journal= {arXiv preprint arXiv:hep-th/9611155},
year = {2009}
}
Comments
12 pages, Latex