50 citations · 240 across the 25 of their papers we have counts for
4 papers · 1 filter
Instanton-noninstanton transition in nonintegrable tunneling processes: A renormalized perturbation approach
Akira Shudo, Yasutaka Hanada, Teruaki Okushima +1
The instanton-noninstanton (I-NI) transition in the tunneling process, which has been numerically observed in classically nonintegrable quantum maps, can be described by a perturba…
Origin of the enhancement of tunneling probability in the nearly integrable system
Yasutaka Hanada, Akira Shudo, Kensuke S. Ikeda
The enhancement of tunneling probability in the nearly integrable system is closely examined, focusing on tunneling splittings plotted as a function of the inverse of the Planck's…
Julia set describes quantum tunneling in the presence of chaos
A. Shudo, Y. ishii, K. S. Ikeda
We find that characteristics of quantum tunneling in the presence of chaos can be regarded as a manifestation of the Julia set of the complex dynamical system. Several numerical ev…
Tunneling Mechanism due to Chaos in a Complex Phase Space
T. Onishi, A. Shudo, K. S. Ikeda +1
We have revealed that the barrier-tunneling process in non-integrable systems is strongly linked to chaos in complex phase space by investigating a simple scattering map model. The…