35 citations · 87 across the 6 of their papers we have counts for
6 papers
Decoherence from Internal Dynamics in Macroscopic Matter-Wave Interferometry
Sang Wook Kim, Hwa-Kyun Park
Usually, decoherence is generated from the coupling with an outer environment. However, a macroscopic object generically possesses its own environment in itself, namely the complic…
Intrinsic decoherence and classical-quantum correspondence in two coupled delta-kicked rotors
Hwa-Kyun Park, Sang Wook Kim
We show that classical-quantum correspondence of center of mass motion in two coupled delta-kicked rotors can be obtained from intrinsic decoherence of the system itself which occu…
Quasibound states at thresholds in multichannel impurity scattering
Sang Wook Kim, Hwa-Kyun Park, H. -S. Sim +1
We investigate the threshold behavior of transmission resonances and quasibound states in the multichannel scattering problems of a one dimensional (1D) time-dependent impurity pot…
Square to stripe transition and superlattice patterns in vertically oscillated granular layers
Hwa-Kyun Park
We investigated the physical mechanism for the pattern transition from square lattice to stripes, which appears in vertically oscillating granular layers. We present a continuum mo…
Confinement and death of oscillations in coupled chaotic bistable oscillators
Hwa-Kyun Park
In coupled chaotic bistable systems such as Lorenz and Chua oscillators, two-phase domains corresponding to the two lobes of the strange attractor are formed. The dynamics of each…
Frequency Locking in Spatially Extended Systems
Hwa-Kyun Park
A variant of the complex Ginzburg-Landau equation is used to investigate the frequency locking phenomena in spatially extended systems. With appropriate parameter values, a variety…