First demonstration of direct optical interferometric readout and feedback cooling of a magnetically levitated superconducting microsphere, with about 1 nm/√Hz displacement sensitivity at 3 K.
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Optical Interferometric Readout of a Magnetically Levitated Superconducting Microsphere
First demonstration of direct optical interferometric readout and feedback cooling of a magnetically levitated superconducting microsphere, with about 1 nm/√Hz displacement sensitivity at 3 K.