25 citations · 38 across the 8 of their papers we have counts for
9 papers
Formulation of general dynamical invariants and their unitary relations for time-dependent three coupled quantum oscillators
Jeong Ryeol Choi
A general dynamical invariant operator for three coupled time-dependent oscillators is derived. Although the obtained invariant operator satisfies the Liouville-von Neumann equatio…
Formulation of general dynamical invariants and their unitary relations for time-dependent coupled quantum oscillators
Jeong Ryeol Choi
An exact invariant operator of time-dependent coupled oscillators is derived using the Liouville-von Neumann equation. The unitary relation between this invariant and the invariant…
Clarifying nonstatic-quantum-wave behavior through extending its analysis to the p-quadrature space: Interrelation between the q- and p-space wave-nonstaticities
Jeong Ryeol Choi
If electromagnetic parameters of a medium vary in time, quantum light waves traveling in it become nonstatic. A recent report shows that such nonstatic waves can also appear even w…
Analysis of light-wave nonstaticity in the coherent state
Jeong Ryeol Choi
The characteristics of nonstatic quantum light waves in the coherent state in a static environment is investigated. It is shown that the shape of the wave varies periodically as a…
Classical limit of quantum mechanics for damped driven oscillatory systems: Quantum-classical correspondence
Jeong Ryeol Choi
The investigation of quantum-classical correspondence may lead to gain a deeper understanding of the classical limit of quantum theory. We develop a quantum formalism on the basis…
The Rayleigh-Lorentz Invariant and Optimal Adiabatic Qubit-Information Detection for Superconducting Qubit Resonators
Jeong Ryeol Choi
Dynamical properties of a resonator can be analyzed using the Rayleigh-Lorentz invariant which is not an exact constant but varies more or less over time. We investigate the time b…