Spatial Compactification and Decay-Rate Behavior
arXiv:hep-th/9906002 · doi:10.1016/S0370-2693(99)00979-X
Abstract
The pahse transition from instanton-dominated quantum tunneling regime to sphaleron-dominated classical crossover regime is explored in (1+1)-dimensional scalar field theory when spatial coordinate is compactified. It is shown that the type of sphaleron transition is critically dependent on the circumference of the spatial coordinate.
12 pages, 6 postscript figures included, accepted version in PLB