Linked from
The 27 pages that link to Josephson effect, each with the reason it gives.
KilogramRelated: It supplies a precisely measurable voltage in Kibble balance experiments.
BCS theoryRelated: The coherent paired state predicts the phase-sensitive current across a junction.
AmpereRelated: It provides a quantum standard for voltage used in electrical metrology.
Cooper pairRelated: Its current arises from the phase-coherent tunneling of Cooper pairs.
VoltRelated: It enables highly precise voltage standards tied to fundamental constants.
SuperconductorRelated: It enables voltage standards, SQUIDs, and superconducting circuit elements.