Scalar Field Theory with a Non-Standard Potential
High Energy Physics - Lattice
2008-12-01 v2
Abstract
We study the phase structure of a 4D complex scalar field theory with a potential V(Phi) = | Lambda^3 / Phi - Lambda Phi |^2 at zero and at finite temperature. The model is analyzed by mean field and Monte Carlo methods. At zero temperature the theory falls in the universality class of the 4D Ising model when varying Lambda. The situation is less clear-cut for variations w.r.t. Lambda at large temperatures and variations w.r.t. temperature at a given value of Lambda. We observe temperature independence of the mass of the first excitation.
Cite
@article{arxiv.0712.3683,
title = {Scalar Field Theory with a Non-Standard Potential},
author = {Sebastian Scheffler and Ralf Hofmann and Ion-Olimpiu Stamatescu},
journal= {arXiv preprint arXiv:0712.3683},
year = {2008}
}
Comments
24 pages, 9 figures; version published in Phys. Rev. D 77