27 citations · 85 across the 10 of their papers we have counts for
10 papers
Usefulness of the Age-Structured SIR Dynamics in Modelling COVID-19
Rohit Parasnis, Ryosuke Kato, Amol Sakhale +2
We examine the age-structured SIR model, a variant of the classical Susceptible-Infected-Recovered (SIR) model of epidemic propagation, in the context of COVID-19. In doing so, we…
Vortex dynamics in lattice Bose gases in a synthesized magnetic field with a random noise and a dissipation: Study by the stochastic Gross-Pitaevskii equation
Ryosuke Kato, Yoshihito Kuno, Ikuo Ichinose
In this paper, we investigate vortex dynamics in a two-dimensional Bose-Hubbard model coupled with a weak artificial magnetic field, a random white noise and a dissipation. Origin…
Cavity QED and Quantum Computation in the Weak Coupling Regime II : Complete Construction of the Controlled-Controlled NOT Gate
Kazuyuki Fujii, Kyoko Higashida, Ryosuke Kato +1
In this paper we treat a cavity QED quantum computation. Namely, we consider a model of quantum computation based on n atoms of laser-cooled and trapped linearly in a cavity and re…
Quantum Diagonalization Method in the Tavis-Cummings Model
Kazuyuki Fujii, Kyoko Higashida, Ryosuke Kato +2
To obtain the explicit form of evolution operator in the Tavis-Cummings model we must calculate the term explicitly which is v…
Explicit Form of the Evolution Operator of Tavis-Cummings Model : Three and Four Atoms Cases
Kazuyuki Fujii, Kyoko Higashida, Ryosuke Kato +2
In this letter the explicit form of evolution operator of the Tavis-Cummings model with three and four atoms is given. This is an important progress in quantum optics or mathematic…
Cavity QED and Quantum Computation in the Weak Coupling Regime
Kazuyuki Fujii, Kyoko Higashida, Ryosuke Kato +1
In this paper we consider a model of quantum computation based on n atoms of laser-cooled and trapped linearly in a cavity and realize it as the n atoms Tavis-Cummings Hamiltonian…