137 citations · 684 across the 35 of their papers we have counts for
7 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…
Effect of dissipation on the decay-rate phase transition
Soo-Young lee, Hungsoo Kim, D. K. Park +2
A general condition for sharp transition of decay rate from quantum to thermal regimes is derived in dissipative tunneling models when position dependent mass is involved. It is sh…
Critical value of symmetry breaking parameter in the phase transition of decay rate
Hungsoo Kim, Soo-Young Lee, Sahng-Kyoon Yoo +2
Phase transition of decay rate from quantum tunneling to thermal activity regimes is investigated in (3+1)-dimensional field theories with symmetry breaking term . By applying…