12 citations · 17 across the 7 of their papers we have counts for
9 papers
Heterogeneity-induced chaos in globally coupled Stuart--Landau oscillators
Luekai Zhao, Nariya Uchida
We show that linear-growth-rate heterogeneity combined with complex global coupling can generate quasiperiodicity and chaos in a finite population of Stuart-Landau oscillators with…
Martingale theory for heat and phase-space contraction in heterogeneous diffusions
Jing Qin, Nariya Uchida, Édgar Roldán
We investigate martingale properties of heat dissipated by generic non-equilibrium overdamped Langevin dynamics with multiple dimensions and transport coefficients that may depend…
Localized inhomogeneity and position-dependent stability of migratory bird formations
Hui Jiang, Nariya Uchida
We investigate how localized inhomogeneity affects the geometry and stability of migratory bird formations. We use a lifting-line model with a horseshoe-vortex representation to de…
Synchronization and metachronal waves in an array of eukaryotic flagella
Yukinori Wakahara, Nariya Uchida
We investigate synchronization and metachronal-wave formation in a one-dimensional array of eukaryotic flagella using an elastohydrodynamic model. In contrast to a two-flagellum sy…
Nonreciprocal amplification toward chaos in a chain of Duffing oscillators
Luekai Zhao, Bojun Li, Nariya Uchida
A chain of harmonic oscillators with nonreciprocal coupling exhibits characteristic amplification behavior that serves as a classical analog of the non-Hermitian skin effect (NHSE)…
Synchronization of two bacterial flagella as a stochastic process
Jing Qin, Nariya Uchida
Synchronization with noise is important for understanding biophysical processes at nano- and micro-meter scales, such as neuronal firing and flagellar rotations. To understand the…
Boltzmann approach to collective motion via nonlocal visual interaction
Susumu Ito, Nariya Uchida
Visual cues play crucial roles in the collective motion of animals, birds, fish, and insects. The interaction mediated by visual information is essentially non-local and has many-b…
Metastability of multi-population Kuramoto-Sakaguchi oscillators
Bojun Li, Nariya Uchida
An Ott-Antonsen reduced -population of Kuramoto-Sakaguchi oscillators is investigated, focusing on the influence of the phase-lag parameter on the collective dynamics. For o…
Selective decision-making and collective behavior of fish by the motion of visual attention
Susumu Ito, Nariya Uchida
Collective motion provides a spectacular example of self-organization in Nature. Visual information plays a crucial role among various types of information in determining interacti…