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arXiv · 1507.05957

Multiple superconducting ring ratchets for ultrasensitive detection of non-equilibrium noise

V. L. Gurtovoi·M. Exarchos·V. N. Antonov·A. V. Nikulov·V. A. Tulin
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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 $1 \ \mu m$ 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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V. L. Gurtovoi, M. Exarchos, V. N. Antonov, A. V. Nikulov, V. A. Tulin. 2015-07-21. Multiple superconducting ring ratchets for ultrasensitive detection of non-equilibrium noise. https://doi.org/10.1063/1.4958731

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