期刊
PHYSICAL REVIEW LETTERS
卷 102, 期 22, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.102.226802
关键词
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资金
- Leverhulme Trust [F/0035/N]
- EPSRC (UK)
- Engineering and Physical Sciences Research Council [EP/D055075/1] Funding Source: researchfish
- EPSRC [EP/D055075/1] Funding Source: UKRI
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.
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