Noise-controlled signal transmission in a multithread semiconductor neuron

A Samardak, Alain Nogaret, N B Janson, A G Balanov, I Farrer, D A Ritchie

Research output: Contribution to journalArticlepeer-review

39 Citations (SciVal)


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.
Original languageEnglish
Article number226802
Pages (from-to)1-4
Number of pages4
JournalPhysical Review Letters
Issue number22
Early online date4 Jun 2009
Publication statusPublished - 5 Jun 2009


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