77 citations · 129 across the 9 of their papers we have counts for
9 papers
Complex spectral analysis and test function spaces
Sungyun Kim
We consider complex eigenstates of unstable Hamiltonian and its physically meaningful regions. Starting from a simple model of a discrete state interacting with a continuum via a g…
Decay modes of two repulsively interacting bosons
Sungyun Kim, Joachim Brand
We study the decay of two repulsively interacting bosons tunneling through a delta potential barrier by direct numerical solution of the time-dependent Schrödinger equation. The so…
Computability of entropy and information in classical Hamiltonian systems
Sungyun Kim
We consider the computability of entropy and information in classical Hamiltonian systems. We define the information part and total information capacity part of entropy in classica…
Undecidability, entropy and information loss in computations of classical physical systems
Sungyun Kim
We investigate how undecidability enters into computations of classical physical systems and contributes to the increase of entropy and loss of information. In actual computation w…
Enhanced quantum Zeno effect and bunching in the decay of interacting bosons from an unstable state
Sungyun Kim, Artem Dudarev, Joachim Brand
paper withdrawn due to the possible error in numerical eigenfunction calculation
Bound states in continuum in an electron waveguide
Kyungsun Na, Gonzalo Ordonez, Sungyun Kim
It is shown that in a double-cavity, two-dimensional electron waveguide, the interplay between quasi-bound states of each cavity leads to the appearance of bound states in continuu…