Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Superconducting optoelectronic networks II: receiver circuits

Published

Author(s)

Jeffrey M. Shainline, Sonia M. Buckley, Adam N. McCaughan, Manuel C. Castellanos Beltran, Christine A. Donnelly, Michael L. Schneider, Richard P. Mirin, Sae Woo Nam

Abstract

Circuits using superconducting single-photon detectors and Josephson junctions to perform signal reception, synaptic weighting, and integration are investigated. The circuits convert photon-detection events into flux quanta, the number of which is determined by the synaptic weight. The current from many synaptic connections is inductively coupled to a superconducting loop which implements the neuronal threshold operation. Designs are presented for neurons which perform integration as well as detect coincidence events for temporal coding. Both excitatory and inhibitory connections are demonstrated. It is shown that a neuron with a single integration loop can receive input from 1000 such synaptic connections, and neurons of similar design could employ many loops for dendritic processing.
Citation
Physical Review Applied

Keywords

neural computing, superconductors, integrated photonics, cognition

Citation

Shainline, J. , Buckley, S. , McCaughan, A. , Castellanos, M. , Donnelly, C. , Schneider, M. , Mirin, R. and Nam, S. (2018), Superconducting optoelectronic networks II: receiver circuits, Physical Review Applied (Accessed November 28, 2021)
Created April 6, 2018, Updated July 9, 2019