On the spectral relations for multitime correlation functions
统计力学
2014-02-17 v1
摘要
A general approach for derivation of the spectral relations for the multitime correlation functions is presented. A special attention is paid to the consideration of the non-ergodic (conserving) contributions and it is shown that such contributions can be treated in a rigorous way using multitime temperature Green functions. Representation of the multitime Green functions in terms of the spectral densities and solution of the reverse problem -- finding of the spectral densities from the known Green functions are given for the case of the three-time correlation functions.
引用
@article{arxiv.cond-mat/0604621,
title = {On the spectral relations for multitime correlation functions},
author = {A. M. Shvaika},
journal= {arXiv preprint arXiv:cond-mat/0604621},
year = {2014}
}
备注
12 pages, submitted to the special issue of the Condensed Matter Physics journal devoted to the Green's functions method