66 citations · 176 across the 7 of their papers we have counts for
7 papers
The law of action and reaction for the effective force in a nonequilibrium colloidal system
Kumiko Hayashi, Shin-ichi Sasa
We study a nonequilibrium Langevin many-body system containing two 'test' particles and many 'background' particles. The test particles are spatially confined by a harmonic potenti…
Computation of the Kolmogorov-Sinai entropy using statistitical mechanics: Application of an exchange Monte Carlo method
Shin-ichi Sasa, Kumiko Hayashi
We propose a method for computing the Kolmogorov-Sinai (KS) entropy of chaotic systems. In this method, the KS entropy is expressed as a statistical average over the canonical ense…
Fluctuation-dissipation relations outside the linear response regime in a two-dimensional driven lattice gas along the direction transverse to the driving force
Kumiko Hayashi
We performed numerical experiments on a two-dimensional driven lattice gas, which constitutes a simple stochastic nonequilibrium many-body model. In this model, focusing on the beh…
Decomposition of force fluctuations far from equilibrium
Kumiko Hayashi, Shin-ichi Sasa
By studying a nonequilibrium Langevin system, we find that a simple condition determines the decomposition of the coarse-grained force into a dissipative force, an effective drivin…
Extended Einstein relations with a complex effective temperature in a one dimensional driven lattice gas
Kumiko Hayashi, Shin-ichi Sasa
We carried out numerical experiments on a one-dimensional driven lattice gas to elucidate the statistical properties of steady states far from equilibrium. By measuring the bulk de…
Effective temperature in nonequilibrium steady states of Langevin systems with a tilted periodic potential
Kumiko Hayashi, Shin-ichi Sasa
We theoretically study Langevin systems with a tilted periodic potential. It has been known that the ratio of the diffusion constant to the differential mobility is not equal t…