Volume 68, Number 6, December 2004
|Page(s)||874 - 880|
|Section||Condensed matter: electronic structure, electrical, magnetic, and optical properties|
|Published online||30 November 2004|
Artificial ion channels and spike computation in modulation-doped semiconductors
Department of Physics, University of Bath - Bath BA2 7AY, UK
2 Department of Computer Science, University of York - York YO10 5DD, UK
Accepted: 25 October 2004
Semiconductor pn microwires are shown to replicate the physical characteristics of biological nerve fibres that condition the propagation and summation of electrical spikes. The spatio-temporal response of the nanowire to sequences of synaptic impulses is modelled using finite elements. We explain how networks of pn wires could be interconnected to construct fully asynchronous neural networks. These ideas are applied to the elementary XOR problem.
PACS: 73.63.-b – Electronic transport in nanoscale materials and structures / 87.18.Sn – Neural networks
© EDP Sciences, 2004
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