Abstract
Measurements are presented of the current noise in a dc superconducting quantum interference device (SQUID) and of its correlation with the voltage noise across the SQUID. The measured spectral densities are in good agreement with analog simulations. When a resonant circuit is connected across the output of the SQUID, there is a reduction in the current noise for frequencies at which the impedance of the circuit is low. This effect is also in good agreement with predictions.
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Martinis, J.M., Clarke, J. Current noise measured in the dc SQUID. J Low Temp Phys 65, 459–468 (1986). https://doi.org/10.1007/BF00684012
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DOI: https://doi.org/10.1007/BF00684012