Demonstrates simultaneous feedback cooling of two modes of a levitating milligram permanent magnet in a superconducting trap to sub-2 pm amplitudes and sub-10 mK temperatures using SQUID readout and piezoelectric actuation.
Using permanent magnets at low temperature,
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Picometer control of a levitating milligram gravity sensor
Demonstrates simultaneous feedback cooling of two modes of a levitating milligram permanent magnet in a superconducting trap to sub-2 pm amplitudes and sub-10 mK temperatures using SQUID readout and piezoelectric actuation.