Wigner Functional Approach to Quantum Field Dynamics
High Energy Physics - Theory
2010-11-01 v3 High Energy Physics - Phenomenology
Abstract
We introduce the Wigner functional representing a quantum field in terms of the field amplitudes and their conjugate momenta. The equation of motion for the functional of a scalar field point out the relevance of solutions of the classical field equations to the time evolution of the quantum field. We discuss the field in thermodynamical equilibrium and find the explicit solution of the equations of motion for the so-called ``roll-over'' phase transition. Finally, we briefly discuss the approximate methods for the evaluation of the Wigner functional that may be used to numerically simulate the initial value problem..
Cite
@article{arxiv.hep-th/9405036,
title = {Wigner Functional Approach to Quantum Field Dynamics},
author = {S. Mrowczynski and B. Mueller},
journal= {arXiv preprint arXiv:hep-th/9405036},
year = {2010}
}
Comments
13 pages, REVTeX. (Somewhat revised and appended version of the original manuscript) DUKE-TH-94-69