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Josephson junction

[joh-zuh f-suh n, -suh f-] /ˈdʒoʊ zəf sən, -səf-/
noun, Electronics.
1.
a high-speed switch, used in experimental computers, that operates on the basis of a radiative phenomenon (Jo·sephson effect) exhibited by a pair of superconductors separated by a thin insulator.
Origin
1965-1970
1965-70; after B. D. Josephson, who predicted the existence of the effect
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for josephson effect

Josephson effect

/ˈdʒəʊzɪfsən/
noun
1.
(physics) any one of the phenomena which occur when an electric current passes through a very thin insulating layer between two superconducting substances. The applications include the very precise standardization of the volt
Word Origin
C20: named after Brian David Josephson (born 1940), Welsh physicist; shared the Nobel prize for physics in 1973
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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josephson effect in Science
Josephson effect
  (jō'zəf-sən)   
An effect in which electron pairs undergo quantum tunneling with zero resistance across a barrier separating two superconductors. The effect can be manipulated by varying a magnetic field at the junction where the tunneling occurs and is being investigated as a possible part of the design of high-speed switches for computer microprocessors. The Josephson effect is named after its discoverer, Welsh physicist Brian David Josephson (b. 1940).
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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