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Signal enhancement in a r.f. SQUID using stochastic resonance

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Il Nuovo Cimento D

Summary

We describe an experiment on a simple superconducting loop with a Josephson junction subject to a time-sinusoidal magnetic flux embedded in a noise background. The response is shown to display thestochastic-resonance effect, wherein the output signal-to-noise-ratio passes through a maximum at a critical value of the noise strength. Escape times probability density functions are also obtained experimentally

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Authors and Affiliations

  1. Quantum Magnetics, 11578 Sorrento Valley Road, 92121, San Diego, CA, USA

    A. D. Hibbs

  2. NCCOSC RDT&E Division, Code 573, 92152-5000, San Diego, CA, USA

    E. W. Jacobs, A. R. Bulsara & J. J. Bekkedahl

  3. Department of Physics, University of Missouri, 63121, St. Louis, MO, USA

    F. Moss

Authors
  1. A. D. Hibbs
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  2. E. W. Jacobs
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  3. A. R. Bulsara
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  4. J. J. Bekkedahl
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  5. F. Moss
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Hibbs, A.D., Jacobs, E.W., Bulsara, A.R. et al. Signal enhancement in a r.f. SQUID using stochastic resonance. Il Nuovo Cimento D 17, 811–817 (1995). https://doi.org/10.1007/BF02451838

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  • DOI: https://doi.org/10.1007/BF02451838

PACS 85.25.Dq

PACS 02.50.Ey

PACS 01.30.Cc

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