Four-point functions in Keldysh basis
高能物理 - 唯象学
2007-05-23 v1
摘要
The Keldysh three- and four-point functions are related to analytical continuations of the Imaginary Time amplitudes,in momentum space. The relation provides an interesting interpretation of the amplitudes that are specific to the Keldysh basis, and of the Ward Identities they satisfy in QED. The interpretation carries over to the (perturbative) non-equilibrium case.
引用
@article{arxiv.hep-ph/0105313,
title = {Four-point functions in Keldysh basis},
author = {F. Guerin},
journal= {arXiv preprint arXiv:hep-ph/0105313},
year = {2007}
}
备注
27 pages, 2 figures, latex2e