忆阻可兴奋元胞自动机
Memristive excitable cellular automata
摘要：
忆阻器是其电阻根据施加到器件端子的电压的极性和幅度而改变的器件。我们使用结构动态元胞自动机设计了一个规则忆阻器网络的最小化模型。每个单元通过传入链路获得关于其最近邻居的状态的信息。链路可以是“导电”或“非导电”状态。每个链接的状态根据链接连接的单元的状态进行更新。忆阻自动机的每个细胞都有三种状态：静息、兴奋（正极性的模拟）和不应（负极性的模拟）。一个单元根据其最近邻居的状态更新其状态，这些邻居通过“导电”链路连接到单元。我们研究了忆阻自动机的行为在响应点和空间扩展的扰动，结构的局部激发加上拓扑缺陷，界面移动激发和增长的信息通路。
英文摘要：
The memristor is a device whose resistance changes depending on the polarity and magnitude of a voltage applied to the device's terminals. We design a minimalistic model of a regular network of memristors using structurally-dynamic cellular automata. Each cell gets info about states of its closest neighbours via incoming links. A link can be one 'conductive' or 'non-conductive' states. States of every link are updated depending on states of cells the link connects. Every cell of a memristive automaton takes three states: resting, excited (analog of positive polarity) and refractory (analog of negative polarity). A cell updates its state depending on states of its closest neighbours which are connected to the cell via 'conductive' links. We study behaviour of memristive automata in response to point-wise and spatially extended perturbations, structure of localised excitations coupled with topological defects, interfacial mobile excitations and growth of information pathways.
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