Superconducting neural circuits using SQUIDs

Author

Mizugaki, Y. ; Nakajima, K. ; Sawada, Y. ; Yamashita, T.

Author_Institution

Res. Inst. of Electr. Commun., Tohoku Univ., Sendai, Japan

Volume

5

Issue

2

fYear

1995

fDate

6/1/1995 12:00:00 AM

Firstpage

3168

Lastpage

3171

Abstract

Superconducting implementation of neural circuits is presented. A neuron element is composed of a coupled-SQUID, which is a combination of a single-junction SQUID and a double-junction SQUID. A synapse element is composed of multiple double-junction SQUIDs. To demonstrate the abilities of these circuits experimentally, a 8-bit neural-based A/D converter, which contains three neurons and three synapses, has been fabricated using a niobium integration technology. This is the first successful implementation of both neuron and active synapse elements into a superconducting neural network.<>

Keywords

SQUIDs; analogue-digital conversion; neural chips; superconducting processor circuits; 8 bit; A/D converter; Nb; SQUIDs; coupled-SQUID; double-junction SQUID; multiple double-junction SQUID; neuron element; niobium integration technology; single-junction SQUID; superconducting neural circuits; synapse element; Artificial neural networks; Coupling circuits; Equivalent circuits; Josephson junctions; Neural networks; Neurons; Niobium; Power dissipation; Resistors; SQUIDs;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.403264

Filename

403264