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Kinetic Characterization of Heat Bath and the Energetics of Thermal Ratchet Models

Journal of the Physical Society of Japan · 1997 · Vol. 66(5) · pp. 1234–1237

Ken Sekimoto✉(Instituto de Física Teórica)

Abstract

Langevin equations have been employed to describe thermally fluctuating systems, such as thermal ratchet models . Their role of the heat bath in these contexts has not been clearly understood. We introduce an approach to this issue and, by using it, propose a method to study the energetics of those models. As a example, we calculate the efficiency of energy conversion of “Feynman's ratchet”.

stochastic dynamics and bifurcation Advanced Thermodynamics and Statistical Mechanics Gene Regulatory Network AnalysisRatchetEnergeticsKinetic energyThermalFeynman diagramPhysicsStatistical physicsLangevin dynamicsThermal energyThermodynamics

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