Research

Noise-controlled signal transmission in a multithread semiconductor neuron


Reference:

Samardak, A., Nogaret, A., Janson, N. B., Balanov, A. G., Farrer, I. and Ritchie, D. A., 2009. Noise-controlled signal transmission in a multithread semiconductor neuron. Physical Review Letters, 102 (22), 226802.

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Official URL:

http://dx.doi.org/10.1103/PhysRevLett.102.226802

Abstract

We report on stochastic effects in a new class of semiconductor structures that accurately imitate the electrical activity of biological neurons. In these devices, electrons and holes play the role of K+ and Na+ ions that give the action potentials in real neurons. The structure propagates and delays electrical pulses via a web of spatially distributed transmission lines. We study the transmission of a periodic signal through a noisy semiconductor neuron. Using experimental data and a theoretical model we demonstrate that depending on the noise level and the amplitude of the useful signal, transmission is enhanced by a variety of nonlinear phenomena, such as stochastic resonance, coherence resonance, and stochastic synchronization.

Details

Item Type Articles
CreatorsSamardak, A., Nogaret, A., Janson, N. B., Balanov, A. G., Farrer, I. and Ritchie, D. A.
DOI10.1103/PhysRevLett.102.226802
DepartmentsFaculty of Science > Physics
RefereedYes
StatusPublished
ID Code14753

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