Memristive excitable cellular automata

Details Memristive excitable cellular automata Memristive excitable cellular automata

2011-11-12

arxiv.org/abs/1111.2940v1

Nonlinear Sciences

Cellular Automata and Lattice Gases

Accepted to Int J Bifurcation and Chaos (2011)

Scientific paper

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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