206 citations · 734 across the 28 of their papers we have counts for
4 papers · 1 filter
Bifurcation of Periodic Instanton in Decay-Rate Transition
Hyun-Soo Min, Hungsoo Kim, D. K. Park +3
We investigate a bifurcation of periodic instanton in Euclidean action-temperature diagram in quantum mechanical models. It is analytically shown that multiple zero modes of fluctu…
Spatial Compactification and Decay-Rate Behavior
D. K. Park, Soo-Young Lee, Hungsoo Kim
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 s…
Winding Number Transition at Finite Temperature : Mottola-Wipf model with and without Skyrme term
D. K. Park, Hungsoo Kim, Soo-Young Lee
The winding number transition in the Mottola-Wipf model with and without Skyrme term is examined. For the model with Skyrme term the number of discrete modes of the fluctuation ope…
Negative modes and decay-rate transition
Soo-Young Lee, Hungsoo Kim, D. K. Park +1
We investigate a relationship between the number of the negative modes around periodic instanton solution and the type of the decay-rate transition. It is shown that for the case o…