Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
1995-11-10
Phys.Rev. D54 (1996) 2944
Physics
High Energy Physics
High Energy Physics - Theory
40 pages LaTeX, 13 Postscript figures. Uses epsf.sty, amssym.def, amssym.tex. No changes. Replaced to correct a problem with t
Scientific paper
10.1103/PhysRevD.54.2944
For a large class of field theories there exist portions of parameter space for which the loop expansion predicts increased symmetry breaking at high temperature. Even though this behavior would clearly have far reaching implications for cosmology such theories have not been fully investigated in the literature. This is at least partially due to the counter intuitive nature of the result, which has led to speculations that it is merely an artifact of perturbation theory. To address this issue we study the simplest model displaying high temperature symmetry breaking using a Wilson renormalization group approach. We find that although the critical temperature is not reliably estimated by the loop expansion the total volume of parameter space which leads to the inverse phase structure is not significantly different from the perturbative prediction. We also investigate the temperature dependence of the coupling constants and find that they run approximately according to their one-loop $\beta$-functions at high temperature. Thus, in particular, the quartic coupling of $phi^4$ theory is shown to increase with temperature, in contrast to the behavior obtained in some previous studies.
No associations
LandOfFree
Wilson Renormalization Group Study of Inverse Symmetry Breaking does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Wilson Renormalization Group Study of Inverse Symmetry Breaking, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Wilson Renormalization Group Study of Inverse Symmetry Breaking will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-63861