2024
DOI: 10.1063/5.0230605
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Pursuing high-fidelity control of spin qubits in natural Si/SiGe quantum dot

Ning Wang,
Shao-Min Wang,
Run-Ze Zhang
et al.

Abstract: Electron spins in silicon quantum dots are a promising platform for fault-tolerant quantum computing. Low-frequency noise, including nuclear spin fluctuations and charge noise, is a primary factor limiting gate fidelities. Suppressing this noise is crucial for high-fidelity qubit operations. Here, we report on a two-qubit quantum device in natural silicon with universal qubit control, designed to investigate the upper limits of gate fidelities in a non-purified Si/SiGe quantum dot device. By employing advanced… Show more

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