Finite temperature correlation functions from form factors
高能物理 - 理论
2015-06-26 v2 凝聚态物理
摘要
We investigate proposals of how the form factor approach to compute correlation functions at zero temperature can be extended to finite temperature. For the two-point correlation function we conclude that the suggestion to use the usual form factor expansion with the modification of introducing dressing functions of various kinds is only suitable for free theories. Dynamically interacting theories require a more severe change of the form factor program.
引用
@article{arxiv.hep-th/0203130,
title = {Finite temperature correlation functions from form factors},
author = {O. A. Castro-Alvaredo and A. Fring},
journal= {arXiv preprint arXiv:hep-th/0203130},
year = {2015}
}
备注
22 pages Latex, 3 figures