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Josephson junction
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A Josephson junction is a nonlinear, dissipationless circuit element that uses the Josephson effect in superconductors to form a nonlinear inductor. It consists of a weak barrier separating two superc
Two Josephson junctions (orange) in parallel.
Two Josephson junctions (orange) in parallel.
An electron beam lithographer (EBL) machine, located inside of a cleanroom, can be used to pattern resist in Josephson junction fabrication.
An electron beam lithographer (EBL) machine, located inside of a cleanroom, can be used to pattern resist in Josephson junction fabrication.
The first practical, stable, and easy to use 1-volt standard chip was created at NIST, based on superconducting Josephson junctions.
The first practical, stable, and easy to use 1-volt standard chip was created at NIST, based on superconducting Josephson junctions.
SQUID
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A SQUID is a very sensitive magnetometer used to measure extremely weak magnetic fields, based on superconducting loops containing Josephson junctions.
Josephson junction
…similar to a LC circuit, with a current-dependent inductance. Circuits with Josephson junctions are used to make superconducting magnetometers known as SQUIDs, in classical logic gates for ultrafast computing, and in circuit quantum electrodynamics to create superconducting qubits. In 1962, British physicist…
Sensing element of a SQUID, 2008
Sensing element of a SQUID, 2008
A prototype SQUID
A prototype SQUID
The inner workings of an early SQUID, circa 1990
The inner workings of an early SQUID, circa 1990