Spatial Compactification and Decay-Rate Behavior
D. K. Park, Soo-Young Lee, Hungsoo Kim
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.
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