Journal ArticleDOI
Forced thermal ratchets.
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In this paper, the authors considered a Brownian particle in a periodic potential under heavy damping and showed that if the particle is subject to an external force having time correlations, detailed balance is lost and the particle can exhibit a nonzero net drift speed.Abstract:
We consider a Brownian particle in a periodic potential under heavy damping. The second law forbids it from displaying any net drift speed, even if the symmetry of the potential is broken. But if the particle is subject to an external force having time correlations, detailed balance is lost and the particle can exhibit a nonzero net drift speed. Thus, broken symmetry and time correlations are sufficient ingredients for transport.read more
Citations
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Memory-induced sign reversals of the spatial cross-correlation for particles in viscoelastic shear flows
TL;DR: In this article, a generalized Langevin equation with a power-law-type memory kernel is used to model the complex structure of the viscoelastic media, and the presence of a memory has a profound effect on the behavior of the cross-correlation functions.
Posted Content
Biology and Thermodynamics: Seemingly-Opposite Phenomena in Search of a Unified Paradigm
TL;DR: Basic thermodynamic concepts are introduced and it is shown that thermodynamics enables looking at the riddles of life from a new perspective and asking some new fruitful questions.
Journal ArticleDOI
Enhanced thermodynamic efficiency in time asymmetric ratchets
TL;DR: In this paper, the energy efficiency of an overdamped Brownian particle in a sawtooth potential in the presence of time asymmetric forcing is studied in the adiabatic limit.
Proceedings ArticleDOI
Electronic ratchet: A non-equilibrium, low power switch
TL;DR: In this article, a non-equilibrium electronic ratchet is used to drive current in the absence of drain bias in the presence of an applied drain bias, and it is shown that it is possible to create a net current from drift-diffusion processes of charge carriers.
Analysis of single-molecule kinesin assay data by hidden Markov model filtering
TL;DR: Analysis of Single-Molecule Kinesin Assay Data by Hidden Markov Model Filtering indicates that the method does have potential to better analyze kinesin-bead experiments, however, analysis of the experimental data indicates that current data sets still lack the time resolution to extract significant information about intermediate states.
References
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Book
Stochastic processes in physics and chemistry
TL;DR: In this article, the authors introduce the Fokker-planck equation, the Langevin approach, and the diffusion type of the master equation, as well as the statistics of jump events.
Stochastic Processes in Physics and Chemistry
Abstract: Preface to the first edition. Preface to the second edition. Abbreviated references. I. Stochastic variables. II. Random events. III. Stochastic processes. IV. Markov processes. V. The master equation. VI. One-step processes. VII. Chemical reactions. VIII. The Fokker-Planck equation. IX. The Langevin approach. X. The expansion of the master equation. XI. The diffusion type. XII. First-passage problems. XIII. Unstable systems. XIV. Fluctuations in continuous systems. XV. The statistics of jump events. XVI. Stochastic differential equations. XVII. Stochastic behavior of quantum systems.
Book
Molecular Cell Biology
TL;DR: Molecular cell biology, Molecular cell biology , مرکز فناوری اطلاعات و اصاع رسانی, کδاوρزی
Book
The Fokker-Planck Equation: Methods of Solution and Applications
TL;DR: In this paper, the Fokker-Planck Equation for N Variables (FPE) was extended to N = 1 variable and N = 2 variables, where N is the number of variables in the system.