Abstract
In this paper, we report novel superconducting neuron and variable synapse circuits for large-scale integration of neural networks. A neuron circuit is composed of the coupled SQUIDs (a single-junction SQUID with a double-junction SQUID). The quantum state of the single-junction SQUID is used as the neuron state, which is read out by the biased double-junction SQUID. A variable synapse circuit consists of a combination of shunted double-junction SQUIDs. Its output current can be digitally changed by switching bias currents. After numerical simulation, we have fabricated superconducting neural microchips using a Nb/AlOx/Nb junction technology, and successfully demonstrated their operations.
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© 1994 Springer-Verlag Tokyo
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Mizugaki, Y., Nakajima, K., Sawada, Y., Yamashita, T. (1994). Novel Superconducting Neuron and Synapse. In: Fujita, T., Shiohara, Y. (eds) Advances in Superconductivity VI. Springer, Tokyo. https://doi.org/10.1007/978-4-431-68266-0_273
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DOI: https://doi.org/10.1007/978-4-431-68266-0_273
Publisher Name: Springer, Tokyo
Print ISBN: 978-4-431-68268-4
Online ISBN: 978-4-431-68266-0
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