26 citations · 37 across the 6 of their papers we have counts for
6 papers
Rotation-to-translation conversion by geometric asymmetry in viscoelastic fluids
Takuya Kobayashi, Hiroki Kitano, Ryoichi Yamamoto
Microscale locomotion in Newtonian fluids is constrained by kinematic reversibility. Here we show that viscoelasticity provides a distinct route: an achiral fore-aft asymmetric bod…
Directional Symmetry Breaking of Spherical Active Colloids by Magnetoviscous Coupling
Ziyang Zhou, Takuya Kobayashi, Keita Saito +5
Harnessing active matter calls for strategies that break the directional symmetry of self-propelled motion without altering the propulsion mechanism itself. Here, we show that magn…
Viscotaxis of chiral microswimmer in viscosity gradients
Takuya Kobayashi, Ryoichi Yamamoto
Microswimmers display an intriguing ability to navigate through fluids with spatially varying viscosity, a behavior known as viscotaxis, which plays a crucial role in guiding their…
Steady Motions of Single Spherical Microswimmers in Non-Newtonian Fluids
Takuya Kobayashi, Ryoichi Yamamoto
In biological systems, microswimmers often propel themselves through complex media. However, many aspects of swimming mechanisms in non-Newtonian fluids remain unclear. This study…
Propulsion of a chiral swimmer in viscoelastic fluids
Takuya Kobayashi, John J. Molina, Ryoichi Yamamoto
Microswimmers often use chirality to generate translational movement from rotation motion, exhibiting distinct behaviors in complex fluids compared to simple Newtonian fluids. Howe…
Large N behavior of string solutions in the Heisenberg model
T. Fujita, T. Kobayashi, H. Takahashi
We investigate the large behavior of the complex solutions for the two magnon system in the S=1/2 Heisenberg XXZ model. The Bethe ansatz equations are numerically solved for th…