Sensitivity of squids built with low-capacitance Josephson tunnel junctions
Abstract
The dynamic characteristics of squids built with a single low-capacitance Josephson tunnel junction or with two such junctions are analyzed. A low-inductance interferometer ring is assumed. Relations are derived by the microscopic theory, which agrees with the resistive model at temperatures lower than half the critical and at frequencies much lower than the energy-gap frequency. The resolving power and the energy yield sensitivity of such squids are calculated and low-frequency fluctuation noise and the squid reaction on the signal source are considered.
- Publication:
-
USSR Rept Electron Elec Eng JPRS UEE
- Pub Date:
- April 1985
- Bibcode:
- 1985RpEEE.......70Z
- Keywords:
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- Capacitance-Voltage Characteristics;
- Josephson Junctions;
- Squid (Detectors);
- Electron Tunneling;
- Energy Gaps (Solid State);
- Interferometers;
- Electronics and Electrical Engineering