Accession Number:

ADA273621

Title:

Stochastic Resonance in a Bistable Squid Loop

Descriptive Note:

Professional paper

Corporate Author:

NAVAL COMMAND CONTROL AND OCEAN SURVEILLANCE CENTER RDT AND E DIV SAN DIEGO CA

Report Date:

1993-08-01

Pagination or Media Count:

7.0

Abstract:

Stochastic Resonance SR is the name given to a statistical nonlinear phenomenon whereby a weak or subthreshold coherent function can be amplified by random forces, or nose, within the system. It was first advanced in the early 1980s as a possible explanation for the observed periodicities in the recurrences of the Earths Ice Ages. The first publication of a modern theory led to an experiment and a flurry of further theoretical activity, an international conference and a review. In this paper, we describe a demonstration experiment wherein SR is exhibited in a superconducting quantum interference device SQUID. Here SR is viewed as a noisy information transmission process. It is entirely appropriate, therefore, to look for this dynamic in a widely used sensitive detector in this example, a detector of weak magnetic fields. Using a modem, miniature, thin film SQUID, we hope this demonstration will stimulate further research and development of SR in applied superconductivity

Subject Categories:

  • Electricity and Magnetism

Distribution Statement:

APPROVED FOR PUBLIC RELEASE