A Multi-Qubit Cryo-CMOS SoC with Polar-Based Electron-Spin and PDM-Based Nuclear-Spin Controllers for Color Centers in Diamond
Niels Fakkel (TU Delft - QCD/Babaie Lab)
Luc Enthoven (TU Delft - QCD/Sebastiano Lab)
Mohamed Abdelrahman Elbadry (TU Delft - QCD/Babaie Lab)
Hendrik Benjamin van Ommen (TU Delft - QID/Taminiau Lab)
Margriet van Riggelen (TU Delft - QID/Taminiau Lab)
Jiwon Yun (TU Delft - QID/Taminiau Lab)
Tim Hugo Taminiau (TU Delft - Quantum Internet Division)
Fabio Sebastiano (TU Delft - QCD/Sebastiano Lab)
Masoud Babaie (TU Delft - QCD/Babaie Lab)
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Abstract
Co-integrating a cryo-CMOS SoC with nitrogen-vacancy (NV) centers in diamond enables a scalable quantum platform. This work introduces a combined Class-DE RFDAC and class-D PDM driver for multi-qubit electron- and nuclear-spin control. A switch allows shared coil driving enabling multi-band 2.5-3.2GHz(1.9-2.1MHz), large-current 70mA(38mA), high-Rabi frequency 2.31MHz(1.93kHz) and high-fidelity 99.34(3)%(99.78(2)%) electron(nuclear) quantum logic gates with decoupled coherence times >50ms.
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