Experimental study reveals halving of single-shot dispersive readout time in superconducting qubits without fidelity loss, highlighting progress toward scalable quantum computing thresholds.
If general quantum information processing and communication using superconducting qubits is to be successful, it is crucial to realize fast, single-shot readout with fidelity approaching 100%. Starting from the physics of measurement, the authors explore current engineering limitations and find a way to halve the measurement time for single-shot dispersive readout, without sacrificing fidelity. This theoretical and experimental insight may bring superconducting quantum technology even closer to the demanding thresholds of quantum computing.
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