Expectation values and vacuum currents of quantum fields
High Energy Physics - Theory
2009-12-15 v1 General Relativity and Quantum Cosmology
Abstract
Theory of expectation values is presented as an alternative to S-matrix theory for quantum fields. This change of emphasis is conditioned by a transition from the accelerator physics to astrophysics and cosmology. The issues discussed are the time-loop formalism, the Schwinger - Keldysh diagrams, the effective action, the vacuum currents, and the effect of particle creation.
Cite
@article{arxiv.0712.3379,
title = {Expectation values and vacuum currents of quantum fields},
author = {G. A. Vilkovisky},
journal= {arXiv preprint arXiv:0712.3379},
year = {2009}
}
Comments
The course of 4 lectures given at College de France in May 2006. 56 pages