Odd elasticity of a catalytic micromachine
Abstract
We perform numerical simulations of a model micromachine driven by catalytic chemical reactions. Our model includes a mechano-chemical coupling between the structural variables and the nonequilibrium variable describing the catalytic reactions. The time-correlation functions of the structural variables are calculated and further analyzed in terms of odd Langevin dynamics. We obtain the effective odd elastic constant that manifests the broken time-reversal symmetry of a catalytic micromachine. Within the simulation, we separately estimate the quantity called nonreciprocality and show that its behavior is similar to that of the odd elasticity.Our approach suggests a new method to extract the nonequilibrium properties of a micromachine only by measuring its structural dynamics.
Keywords
Cite
@article{arxiv.2211.16089,
title = {Odd elasticity of a catalytic micromachine},
author = {Akira Kobayashi and Kento Yasuda and Kenta Ishimoto and Li-Shing Lin and Isamu Sou and Yuto Hosaka and Shigeyuki Komura},
journal= {arXiv preprint arXiv:2211.16089},
year = {2023}
}