High fidelity bi-directional nuclear qubit initialization in SiC

Abstract

Dynamic nuclear polarization (DNP) is an attractive method for initializing nuclear spins that are strongly coupled to optically active electron spins because it functions at room temperature and does not require strong magnetic fields. In this Letter, we demonstrate that DNP, with near-unity polarization efficiency, can be generally realized in weakly coupled hybrid registers, and furthermore that the nuclear spin polarization can be completely reversed with only sub-Gauss magnetic field variations. This mechanism offers new avenues for DNP-based sensors and radio-frequency free control of nuclear qubits.

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Cited by in corpus (7)

• Integrated quantum photonics with silicon carbide: challenges and prospects
• Spin-strain interaction in nitrogen-vacancy centers in diamond
• Quantum Information Processing With Integrated Silicon Carbide Photonics
• Photoluminescence at the ground state level anticrossing of the nitrogen-vacancy center in diamond
• Longitudinal spin relaxation model applied to point defect qubit systems
• \emph{Ab initio} theory of ${\text{N}}_2\text{V}$ defect as quantum memory in diamond
• Level-crossing induced spin phenomena in SiC: a theoretical study