QUANTUM TECHNOLOGY

Fast and space-efficient spin sensing

Gate-based reflectometry enables single-shot spin readout in double quantum dots. This can help to reduce the number of gates necessary to operate a spin qubit and the per qubit device footprint, while allowing fast measurement — important characteristics for scalable quantum computing architectures.

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Fig. 1: Schematic of gate-sensing for spin detection.

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Correspondence to Xuedong Hu.

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