Regular pulsing induced by noise in a monolithic semiconductor neuron

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

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

We report on the stochastic dynamics of a semiconductor neuron that uses the non-linear conductances of modulation doped semiconductors to compute electrical spikes. This GaAs-based neuron has pn wires which propagate and delay electrical pulses and a soma which sums and regenerates pulses through the positive feedback of a quantum tunnel amplifier vertically integrated with the wire. The neuron exhibits the property of excitability: it responds with a spike to a perturbation that exceeds a certain threshold value, and remains silent if the perturbation is small. When exciting the neuron with a sub-threshold periodic signal, a superimposed random noise is shown to enhance the coherence of the output pulse train. We perform a systematic study of stochastic resonance and coherence resonance as a function of excitation parameters and analyze output spectra using statistical tools.
Original languageEnglish
Title of host publicationPhysics of Semiconductors
EditorsM J Caldas, N Studart
Place of PublicationMelville
PublisherAmerican Institute of Physics
Pages523-524
Number of pages2
Volume1199
Edition1
ISBN (Print)9780735407367
DOIs
Publication statusPublished - 2009
Event29th International Conference on Physics of Semiconductors - Rio de Janeiro, Brazil
Duration: 27 Jul 20081 Aug 2008

Publication series

NameAIP Conference Proceedings
PublisherAmerican Institute of Physics

Conference

Conference29th International Conference on Physics of Semiconductors
CountryBrazil
CityRio de Janeiro
Period27/07/081/08/08

Fingerprint

neurons
spikes
pulses
wire
perturbation
positive feedback
thresholds
output
random noise
tunnels
amplifiers
modulation
excitation

Cite this

Samardak, A. S., Nogaret, A., Taylor, S., Janson, N. B., Balanov, A. G., Farrer, I., & Ritchie, D. A. (2009). Regular pulsing induced by noise in a monolithic semiconductor neuron. In M. J. Caldas, & N. Studart (Eds.), Physics of Semiconductors (1 ed., Vol. 1199, pp. 523-524). (AIP Conference Proceedings). Melville: American Institute of Physics. https://doi.org/10.1063/1.3295539

Regular pulsing induced by noise in a monolithic semiconductor neuron. / Samardak, A S; Nogaret, Alain; Taylor, Stephen; Janson, N B; Balanov, A G; Farrer, I; Ritchie, D A.

Physics of Semiconductors. ed. / M J Caldas; N Studart. Vol. 1199 1. ed. Melville : American Institute of Physics, 2009. p. 523-524 (AIP Conference Proceedings).

Research output: Chapter in Book/Report/Conference proceedingChapter

Samardak, AS, Nogaret, A, Taylor, S, Janson, NB, Balanov, AG, Farrer, I & Ritchie, DA 2009, Regular pulsing induced by noise in a monolithic semiconductor neuron. in MJ Caldas & N Studart (eds), Physics of Semiconductors. 1 edn, vol. 1199, AIP Conference Proceedings, American Institute of Physics, Melville, pp. 523-524, 29th International Conference on Physics of Semiconductors, Rio de Janeiro, Brazil, 27/07/08. https://doi.org/10.1063/1.3295539
Samardak AS, Nogaret A, Taylor S, Janson NB, Balanov AG, Farrer I et al. Regular pulsing induced by noise in a monolithic semiconductor neuron. In Caldas MJ, Studart N, editors, Physics of Semiconductors. 1 ed. Vol. 1199. Melville: American Institute of Physics. 2009. p. 523-524. (AIP Conference Proceedings). https://doi.org/10.1063/1.3295539
Samardak, A S ; Nogaret, Alain ; Taylor, Stephen ; Janson, N B ; Balanov, A G ; Farrer, I ; Ritchie, D A. / Regular pulsing induced by noise in a monolithic semiconductor neuron. Physics of Semiconductors. editor / M J Caldas ; N Studart. Vol. 1199 1. ed. Melville : American Institute of Physics, 2009. pp. 523-524 (AIP Conference Proceedings).
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