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
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Efficiency bounds for nonequilibrium heat engines
Pankaj Mehta,Anatoli Polkovnikov +1 more
TL;DR: In this paper, the efficiency of thermal engines with a single heat reservoir like an atmosphere was analyzed and it was shown that the second law of thermodynamics limits the second-order efficiency of such engines.
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Rectification of energy and motion in non-equilibrium parity violating metamaterials
TL;DR: In this paper, a parity violating metamaterial is used to generate energy flows through an object in the absence of any temperature gradient, and the non-reciprocal microscopic fluctuations responsible for generating the energy flows can further be used to power locomotion in, or exert forces on, a viscous fluid.
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Brownian Motors Driven by Particle Exchange.
Shin-ichi Sasa,Tatsuo Shibata +1 more
TL;DR: In this paper, the Langevin dynamics is extended so that particles can be exchanged with a particle reservoir, and it is shown that grand canonical ensembles are realized at equilibrium and derive relations of thermodynamics for processes between equilibrium states.
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Internal degrees of freedom in a thermodynamical model for intracell biological transport
S. Cilla,Luis Mario Floría +1 more
TL;DR: The mechanism for intracell transport based on the 1D motion of certain proteins along the cytoskeleton microtubular fibres is analysed from the perspective of a non-equilibrium thermodynamical model which incorporates an internal protein degree of freedom.
Posted Content
Defining and generating current in open quantum systems
TL;DR: In this article, the authors derive a general formula for probability current on an arbitrary graph, universally applicable to any system-environment interaction, and provide a representation of the average current, whereby the operator is first measured weakly, then strongly.
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.