Bounce solutions and the transition to thermal hopping in phi^4 theory with a phi^3 term
High Energy Physics - Theory
2009-10-31 v1
Abstract
The nature of the transition from quantum tunneling at low temperatures to thermal hopping at high temperatures is investigated in a scalar field theory with cubic symmetry breaking. The bounce solution which interpolates between the zero-temperature and high-temperature solutions is obtained numerically, using a multigrid method. It is found that, for a small value of the symmetry-breaking coupling f, the transition is first-order. For higher values of f, the transition continues to be first-order, though weakly so.
Keywords
Cite
@article{arxiv.hep-th/9809010,
title = {Bounce solutions and the transition to thermal hopping in phi^4 theory with a phi^3 term},
author = {Hatem Widyan and A. Mukherjee and N. Panchapakesan and R. P. Saxena},
journal= {arXiv preprint arXiv:hep-th/9809010},
year = {2009}
}
Comments
Latex file with 18 figures, 29 pages