Applied Physics Letters · 1971 · 40 citations · 9 references
Positive FeedbackQuantum ScienceJosephson JunctionsCurrent AmplificationEngineeringQuantum TechnologyPhysicsQuantum DeviceQuantum FeedbackApplied PhysicsDouble-josephson-junction Quantum InterferometerQuantum DevicesInstrumentationQuantum Photonic DeviceQuantum SensingQuantum Transducers
Positive feedback has been used within a double-Josephson-junction quantum interferometer to achieve a current amplification which can be adjusted from outside the cryostat over the range 1–100. The interferometer may be regarded as a three-terminal amplifying device.
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Quantum Interference Effects in Josephson Tunneling
R. C. Jaklevic, John Lambe, A. H. Silver et al. · Physical Review Letters · 1964 · 489 citations