论文标题
能量与动态在记忆形成中的竞争
Competition between energy and dynamics in memory formation
论文作者
论文摘要
外部磁场在状态之间推动的双稳定物体通常被用作一个简单的模型，以研究无序材料中的记忆形成。这种称为Hysterons的系统通常是过准处理的。在这里，我们概括了Hysterons，以探索具有可调双重性的简单弹簧系统中动力学的效果，并研究系统如何选择最小值。更改强迫的时间尺度可以使系统可以通过将局部能量的最小值遵循其命运确定的情况之间过渡，以将其捕获在浅层中，而局部能量被捕获在浅层井中，这是由通过配置空间所采取的路径确定的。振荡强迫会导致持续许多周期的瞬态，这是单个准危的海德龙的行为。
Bi-stable objects that are pushed between states by an external field are often used as a simple model to study memory formation in disordered materials. Such systems, called hysterons, are typically treated quasistatically. Here, we generalize hysterons to explore the effect of dynamics in a simple spring system with tunable bistability and study how the system chooses a minimum. Changing the timescale of the forcing allows the system to transition between a situation where its fate is determined by following the local energy minimum to one where it is trapped in a shallow well determined by the path taken through configuration space. Oscillatory forcing can lead to transients lasting many cycles, a behavior not possible for a single quasistatic hysteron.
