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Josephson junction

American

[joh-zuhf-suhn juhngk-shuhn, -suhf-] / ˈdʒoʊ zəf sən ˈdʒʌŋk ʃən, -səf- /

noun

Electronics.

a high-speed switch, used in experimental computers, that operates on the basis of a radiative phenomenon Josephsoneffect exhibited by a pair of superconductors separated by a thin insulator. JJ

Etymology

Origin of Josephson junction

First recorded in 1965–70; after B. D. Josephson, who predicted the existence of the effect

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

At first glance, a Josephson junction has a simple structure.

From Science Daily • Dec. 23, 2025

By moving this barrier periodically, the researchers recreated conditions similar to those in a superconducting Josephson junction exposed to microwave radiation.

From Science Daily • Dec. 23, 2025

The typical, trusty aluminum Josephson junction is made of two layers of aluminum and a middle layer of aluminum oxide.

From Science Daily • Feb. 26, 2024

Since switches are a limiting factor in computer speed, an economical Josephson junction could prove invaluable.

From Time Magazine Archive

They knew that they could produce a voltage drop across a Josephson junction by applying a weak magnetic field; generating that field would require only a fraction of the energy required to switch a transistor.

From Time Magazine Archive

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023