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Gate reflectometry for probing charge and spin states in linear Si MOS split-gate arrays

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 نشر من قبل Louis Hutin
 تاريخ النشر 2019
  مجال البحث فيزياء
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We fabricated linear arrangements of multiple splitgate devices along an SOI mesa, thus forming a 2xN array of individually controllable Si quantum dots (QDs) with nearest neighbor coupling. We implemented two different gate reflectometry-based readout schemes to either probe spindependent charge movements by a coupled electrometer with single-shot precision, or directly sense a spin-dependent quantum capacitance. These results bear significance for fast, high-fidelity single-shot readout of large arrays of foundrycompatible Si MOS spin qubits.



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