Multiple superconducting ring ratchets for ultrasensitive detection of non-equilibrium noise
V.L. Gurtovoi, M. Exarchos, V.N. Antonov, A.V. Nikulov, and V.A. Tulin
TL;DR
This paper demonstrates that a series of 667 asymmetric superconducting aluminum rings can be used as an ultrasensitive detector for non-equilibrium noise by observing quantum periodicity in dc voltage.
Contribution
It introduces a novel noise detection method utilizing multiple superconducting rings exhibiting quantum effects for enhanced sensitivity.
Findings
Detection of non-equilibrium noise using superconducting rings.
Quantum periodicity observed in dc voltage across asymmetric rings.
System can detect noise levels down to equilibrium noise.
Abstract
Magnetic quantum periodicity in the dc voltage is observed when asymmetric rings are switched between superconducting and normal state by a noise or ac current. This quantum effect is used for detection of a non-equilibrium noise with the help of a system of 667 asymmetric aluminum rings of in diameter connected in series. Any noise down to the equilibrium one can be detected with the help of such system with enough great number of asymmetric rings.
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