73 citations · 128 across the 9 of their papers we have counts for
4 papers · 1 filter
Large time behavior and asymptotic stability of the two-dimensional Euler and linearized Euler equations
Freddy Bouchet, Hidetoshi Morita
We study the asymptotic behavior and the asymptotic stability of the two-dimensional Euler equations and of the two-dimensional linearized Euler equations close to parallel flows.…
Collective motion in a Hamiltonian dynamical system
Hidetoshi Morita, Kunihiko Kaneko
Oscillation of macroscopic variables is discovered in a metastable state in the Hamiltonian dynamical system of mean field XY model, the duration of which is divergent with the sys…
Roundabout relaxation: collective excitation requires a detour to equilibrium
Hidetoshi Morita, Kunihiko Kaneko
Relaxation to equilibrium after strong and collective excitation is studied, by using a Hamiltonian dynamical system of one dimensional XY model. After an excitation of a domain of…
Self-Organized Bottleneck in Energy Relaxation
Hidetoshi Morita, Kunihiko Kaneko
We study an energy relaxation process after many degrees of freedom are excited in a Hamiltonian system with a large number of degrees of freedom. Bottlenecks of relaxation, where…