Research by a California Institute of Technology (Caltech) team demonstrated that Barkhausen noise can also be generated via quantum mechanical phenomena in addition to conventional or classical methods.
This is the first experimental detection of quantum Barkhausen noise. “Barkhausen noise is the collection of the little magnets flipping in groups. We are doing the same experiment that has been done many times, but we are doing it in a quantum material,” said Christopher Simon, lead author of the paper and a postdoctoral scholar at Caltech, in a statement.
According to researchers, the work is a step forward in basic physics and may eventually be used in developing quantum sensors and other electrical devices.
The details of the team’s study were published in the journal Proceedings of the National Academy of Sciences (PNAS).
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