Josephson junction


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Related to Josephson junction: Josephson tunneling

Josephson junction

[′jō·səf·sən ‚jəŋk·shən]
(cryogenics)
A thin insulator separating two superconducting materials; it displays the Josephson effect.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

Josephson Junction

(electronics)
A type of electronic circuit capable of switching at very high speeds when operated at temperatures approaching absolute zero. The low power dissipation of a Josepshson Junction makes it useful in high density computer circuits.
This article is provided by FOLDOC - Free Online Dictionary of Computing (foldoc.org)

Josephson junction

An ultra-fast switching technology that uses superconductor materials, originally conceived by Brian Josephson. Circuits are immersed in liquid helium to obtain near-absolute zero degrees required for operation. Switching takes place in a few picoseconds. Although Josephson junctions have not materialized for ordinary computer circuits, they have been used thus far in medical instruments and quantum computers. See quantum computing.
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References in periodicals archive ?
Provided such an electric potential difference is recorded via proper coincidence scheme (an additional detector junction involved), we may confirm that the geometric effect at the Josephson junction is a physical reality.
Sastry, "Dynamics of the forced Josephson junction circuit: the regions of chaos," Institute of Electrical and Electronics Engineers.
3) and consists of a total of 20 Josephson junctions. The Josephson junctions use Nb electrodes with Nb-Si barriers and behave like superconductor-normal metal-superconductor (SNS) junctions [49, 50].
Because voltage and frequency are linearly related, practical primary voltage standards are based on an array of thousands of Josephson junctions running at a lower frequency (Figure 2).
When multiple domains exist, gradients between domains of differing phase [phi] are accompanied by currents that tunnel between the domains as the spaces between the domains form Josephson junctions [14].
In general, "Josephson junction arrays are excellent experimental systems for studying phase locking and related phenomena," Benz notes.
Each SQUID contains a single HTS Josephson junction.
Josephson junctions consist of a thin layer of insulating material sandwiched between two layers of a superconducting material, as shown in Figure 4.
With the help of low-voltage low power (LVLP) technique, the normalized form of RAM cell design is made by replacing MOS technology with Josephson Junction (JJ) technology.