199 citations · 768 across the 8 of their papers we have counts for
8 papers
\textit{C. elegans} collectively forms dynamical networks
Takuma Sugi, Hiroshi Ito, Masaki Nishimura +1
Understanding physical rules underlying collective motions requires perturbation of controllable parameters in self-propelled particles. However, controlling parameters in animals…
Long-range nematic order and anomalous fluctuations in suspensions of swimming filamentous bacteria
Daiki Nishiguchi, Ken H. Nagai, Hugues Chaté +1
We study the collective dynamics of elongated swimmers in a very thin fluid layer by devising long, filamentous, non-tumbling bacteria. The strong confinement induces weak nematic…
Collective Motion of Self-Propelled Particles with Memory
Ken H. Nagai, Yutaka Sumino, Raul Montagne +2
We show that memory, in the form of underdamped angular dynamics, is a crucial ingredient for the collective properties of self-propelled particles. Using Vicsek-style models with…
Rotational motion of a droplet induced by interfacial tension
Ken H. Nagai, Fumi Takabatake, Yutaka Sumino +3
Spontaneous rotation of a droplet induced by the Marangoni flow is analyzed in a two-dimensional system. The droplet with the small particle which supplies a surfactant at the inte…
Drift instability in the motion of a fluid droplet with a chemically reactive surface driven by Marangoni flow
Natsuhiko Yoshinaga, Ken H. Nagai, Yutaka Sumino +1
We theoretically derive the amplitude equations for a self-propelled droplet driven by Marangoni flow. As advective flow driven by surface tension gradient is enhanced, the station…
Spontaneous motion of a droplet coupled with a chemical wave
Hiroyuki Kitahata, Natsuhiko Yoshinaga, Ken H. Nagai +1
We propose a novel framework for the spontaneous motion of a droplet coupled with internal dynamic patterns generated in a reaction-diffusion system. The spatio-temporal order of t…