2010/02/21 by Thomas Dittrich, Nestor A. Naranjo, Nathalie Naranjo · 6 citations
Computer Science · Physics and Astronomy · #Advanced Thermodynamics and Statistical Mechanics #Computer science #Control theory (sociology) #Current (fluid) #Degrees of freedom (physics and chemistry) #Energy (signal processing) #Materials science #Molecular motor #Nanotechnology #Nonlinear Dynamics and Pattern Formation #Physics #Quantum mechanics #Ratchet #Work (physics) #cond-mat.stat-mech #physics.chem-ph #stochastic dynamics and bifurcation
paper · pdf · doi:10.1016/j.chemphys.2010.07.008
published in Chemical Physics 375(2-3), 486-491 (Elsevier BV) · 7 pages, 9 figures
arxiv created 2010/02/21 · openalex publication_date 2010/07/14 · arxiv updated 2015/05/18 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We consider mechanisms of directed transport in a ratchet model comprising, besides the external freedom where transport occurs, a chemical freedom that replaces the familiar external driving by an autonomous dynamics providing energy input, and an internal freedom representing a functional mode of a motor molecule. The dependence of the current on various parameters is studied in numerical simulations of our model. In particular, we point out the role of the internal freedom as a buffer between energy input and output of mechanical work that allows a temporary storage of injected energy and can contribute to the efficiency of current generation.