Variational approximation for two-time correlation functions in $\Phi^4$ theory : optimization of the dynamics
High Energy Physics - Theory
2009-10-28 v1
Abstract
We apply the time-dependent variational principle of Balian and V\'en\'eroni to the theory. An appropriate parametrization for the variational objects allows us to write coupled dynamical equations from which we derive approximations for the two-time correlation functions involving two, three or four field operators.
Cite
@article{arxiv.hep-th/9505031,
title = {Variational approximation for two-time correlation functions in $\Phi^4$ theory : optimization of the dynamics},
author = {Cécile Martin},
journal= {arXiv preprint arXiv:hep-th/9505031},
year = {2009}
}
Comments
15 pages Latex