Josephson Constant

The inverse of the flux quantum, is called the Josephson constant, and is denoted KJ. It is one of the electromagnetic constants and it is the constant of proportionality of the Josephson effect. It is widely used to provide a standard for the high-precision measurements of potential difference.

Constant Name

Josephson Constant

Symbol : KJ = 2 e / h

Unit : Hz·V-1

Value : 4.835 978 70(11) × 1014

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