A Multiple-Valued Hopfield Network Device Using Single-Electron Circuits

Takashi YAMADA  Yoshihito AMEMIYA  

Publication
IEICE TRANSACTIONS on Electronics   Vol.E82-C   No.9   pp.1615-1622
Publication Date: 1999/09/25
Online ISSN: 
DOI: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on Integrated Electronics and New System Paradigms)
Category: Quantum Devices and Circuits
Keyword: 
single electron,  Hopfield network,  multiple-valued,  

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Summary: 
We developd a method of implementing a multiple-valued Hopfield network on electronic circuits by using single-electron circuit technology. The single-electron circuit shows quantized behavior in its operation because of the discrete tunnel transport of electrons. It can therefore be successfully used for implementing neuron operation of the multiple-valued Hopfield network. The authors developed a single-electron neuron circuit that can produce the staircase transfer function required for the multiple-valued neuron. A method for constructing a multiple-valued Hopfield network by combining the neuron circuits was also developed. A sample network was designed that solves an example of the quadratic integer-programming problem. And a computer simulation demonstrated that the sample network can converge to its optimal state that represents the correct solution to the problem.