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An order parameter equation for the dynamic yield stress in dense colloidal suspensions
Michio Otsuki, Shin-ichi Sasa
We study the dynamic yield stress in dense colloidal suspensions by analyzing the time evolution of the pair distribution function for colloidal particles interacting through a Len…
Energy dissipation and violation of the fluctuation-response relation in non-equilibrium Langevin systems
Takahiro Harada, Shin-ichi Sasa
The fluctuation-response relation is a fundamental relation that is applicable to systems near equilibrium. On the other hand, when a system is driven far from equilibrium, this re…
Microscopic description of the equality between violation of fluctuation-dissipation relation and energy dissipation
Hiroshi Teramoto, Shin-ichi Sasa
In systems far from equilibrium, the fluctuation-dissipation relation is violated due to the lack of detailed balance. Recently, for a class of Langevin equations, it has been prov…
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…
Linear response theory in stochastic many-body systems revisited
Kumiko Hayashi, Shin-ichi Sasa
The Green-Kubo relation, the Einstein relation, and the fluctuation-response relation are representative universal relations among measurable quantities that are valid in the linea…