Josephson junction
/ˈdʒəʊzɪfsən
/noun Physics
An electrical device in which two superconducting metals are separated by a thin layer of insulator, across which an electric current may flow in the absence of a potential difference. The current may be made to oscillate in proportion to an applied potential difference.If MgB2 does have the properties Cardwell suggests, it could be used to improve microwave devices and Josephson junctions, effectively superconducting transistors....
- The gap between the two superconducting layers in a Josephson junction is called the ‘weak link’.
- The work reported in Science creates qubits from superconducting circuit elements called Josephson junctions.
Origin
1960s: named after Brian D. Josephson (born 1940), British physicist.
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