论文标题
在瓦楞纸棘轮上的运输中老化
Aging in the transport on the corrugated ratchet potential
论文作者
论文摘要
在快速底层过冷的情况下，玻璃形成液体在无定形状态下冻结，该状态只能在很长的时间尺度上平衡，这是衰老的特征征兆，在广泛的系统中已经观察到了衰老的特征迹象。布朗棘轮是一个广泛研究的系统，表现出多种类型的异常动力学行为。我们已经调查了布朗颗粒在具有淬火障碍的周期性棘轮潜力中衰老的可能性。我们发现，当长期捕获颗粒的缓慢生长时，集体运动往往会变得超越。超延伸的运输薄弱地打破了恐怖性，覆盖整个相空间的时间变得非常长，让人联想到衰老行为。
Under rapid undercooling, glass forming liquids freeze in an amorphous state that can equilibrate only on enormously long time-scales, This is the characteristic sign of aging, which has been observed in a wide range of systems. Brownian ratchet is a widely studied system that exhibits many types of anomalous dynamical behavior. We have investigated the possibility of aging in the collective motion of Brownian particles in a periodic ratchet potential with quenched disorder. We find that when a slowly growing fraction of particles are trapped for long time, the collective movement tends to become super-diffusive. The super-diffusive transport weakly breaks the ergodicity and the time to cover the whole phase space become enormously long and reminiscent of aging behavior.
