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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Journal ArticleDOI
Motor-Free Contractility in Active Gels
TL;DR: A motor-free mechanism that can generate contraction in biopolymer networks without the need for polarity is proposed, based on active binding and unbinding of cross-linkers that breaks the principle of detailed balance.
Journal ArticleDOI
A parametric variant of resonant activation: two-state model approach.
TL;DR: This parametric variant of resonant activation and associated features of noise induced transition are realized in terms of a two-state model to estimate analytically several quantifiers of the escape event.
Patent
Systems and methods for enhanced scoda
TL;DR: In this article, a set of methods and apparatus for separating, concentrating and/or detecting molecules based on differences in binding affinity to a probe are provided. But the methods can be used in fields such as epigenetics or oncology to selectively concentrate or detect the presence of specific biomolecules, to provide diagnostics for disorders such as fetal genetic disorders, to detect biomarkers in cancer, organ failure, disease states, infection or the like.
Journal ArticleDOI
GaAs-Based Nanowire Devices with Multiple Asymmetric Gates for Electrical Brownian Ratchets
TL;DR: In this article, a GaAs-based nanowire with multiple asymmetric gates for electrical Brownian ratchets was fabricated and characterized, and the formation of the asymmetric potential in the design was confirmed.
Journal ArticleDOI
Preferentially directed flux motion in a very thin superconducting strip with nanostructured profile
TL;DR: In this article, an experimental and numerical study of the vortex matter moving in a very thin type II superconducting strip with asymmetrically nanostructured profile was performed. And the authors discussed the geometrical force affecting the moving vortex matter and discussed the time dependent Ginzburg-Landau model for superconductors with variable thickness.
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.