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: 1965–70; after B. D. Josephson, who predicted the existence of the effect
electronics A type of electroniccircuit 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. (2004-06-28)