Classical Limit in Scalar QFT at High Temperature
High Energy Physics - Phenomenology
2007-05-23 v1
Abstract
It is shown that in a scalar quantum field theory at high temperatures we can compute even time dependent observables from an effective theory, which can be interpreted as a (nonlocal) classical statistical field theory. We examine the retarded Greens function in the local approximation, and define the classical self energy. Its imaginary part agrees with the quantum case in the leading order.
Cite
@article{arxiv.hep-ph/9708229,
title = {Classical Limit in Scalar QFT at High Temperature},
author = {Antal Jakovac},
journal= {arXiv preprint arXiv:hep-ph/9708229},
year = {2007}
}
Comments
LaTeX, 5 pages. Talk given at Eotvos Conference in Science: Strong and Electroweak Matter (SEWM 97), Eger, Hungary, 21-25 May 1997