Open AccessSuperconducting quantum interference devices
Author(s) -
Dewen Zheng
Publication year - 2021
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.70.20202131
Subject(s) - squid , superconductivity , josephson effect , quantum interference , scanning squid microscopy , physics , condensed matter physics , quantization (signal processing) , quantum , macroscopic quantum phenomena , magnetic flux , superconducting quantum computing , rapid single flux quantum , quantum mechanics , magnetic field , magnetometer , computer science , ecology , gradiometer , computer vision , biology
Superconductivity is a macroscopic quantum phenomenon. Flux quantization and the Josephson effect are two physical phenomena which can best reflect the macroscopic quantum properties. Superconducting quantum interference device (SQUID) is one type of superconducting devices which uses these two characteristics. SQUID devices are widely used in the sensitive detection of magnetic signals. This paper briefly introduces the background and recent developments of low temperature superconductor and high temperature superconductor SQUID devices.