The Hartree ensemble approximation revisited: The "symmetric phase"
High Energy Physics - Phenomenology
2009-11-07 v2
Abstract
The Hartree ensemble approximation is studied in the ``symmetric phase'' of 1+1 dimensional lambda phi^4 theory. In comparison with the ``broken phase'' studied previously, it is shown that the dynamical evolution of observables such as the particle distribution, energy exchange and auto-correlation functions, is substantially slower. Approximate thermalization is found only for relatively large energy densities and couplings.
Keywords
Cite
@article{arxiv.hep-ph/0208139,
title = {The Hartree ensemble approximation revisited: The "symmetric phase"},
author = {Mischa Salle and Jan Smit},
journal= {arXiv preprint arXiv:hep-ph/0208139},
year = {2009}
}
Comments
17 pages RevTeX, 16 figures, 3 tables, uses amsmath and feynmp. Extended some sections, reordered Sec.IV, added 3 refs, numerical typo corrected, published version