论文标题
超平衡的Frenkel-Kontorova模型
Out-of-equilibrium Frenkel-Kontorova model
论文作者
论文摘要
考虑了在周期性基板上移动并在位置取决于温度曲线的1D相互作用模型。当底物和温度曲线在空间不对称上时，质量中心速度会发展出来，对应于链的定向运输。因此，这种自主系统可以将荒地电流转化为运动。可以调整模型参数，以使粒子从底物上的有序构型到无序的构型表现出一个交叉，在这种无序相中达到的最大运动效应。在这种情况下，许多车身电动机的表现优于单电动机系统，显示了微观热设备中集体效应的重要性。因此，这种集体效应代表了可以利用的免费资源，以增强微观机器中的动态性和热力学性能。
A 1D model of interacting particles moving over a periodic substrate and in a position dependent temperature profile is considered. When the substrate and the temperature profile are spatially asymmetric a center-of-mass velocity develops, corresponding to a directed transport of the chain. This autonomous system can thus transform heath currents into motion. The model parameters can be tuned such that the particles exhibit a crossover from an ordered configuration on the substrate to a disordered one, the maximal motor effect being reached in such a disordered phase. In this case the manybody motor outperforms the single motor system, showing the great importance of collective effects in microscopic thermal devices. Such collective effects represent thus a free resource that can be exploited to enhance the dynamic and thermodynamic performances in microscopic machines.
