Scalable Control of Over 100 Individually Resolved Nitrogen-Vacancy Centers in Diamond
ORAL
Abstract
Nitrogen-vacancy (NV) centers in diamond have emerged as versatile quantum sensors and qubits. However, conventional experimental architectures typically suffer from a trade-off between single-defect resolution and ensemble-scale throughput. We present an experimental platform enabling simultaneous control and readout of more than 100 individually resolved NV centers. By integrating high-speed optical addressing with global spin-state manipulation, we achieve parallel initialization, manipulation, and high fidelity readout of NV center charge- and spin-states with single-defect resolution. We leverage these capabilities to measure 5,000 unique pairwise electronic spin-state correlations at once. This platform is inherently scalable, with a path toward measurements with thousands of individual NV centers. These advances establish arrays of individual NV centers as a practical resource for large-scale quantum technologies, combining the precision of single-spin control with the statistical power of parallel operation.
*Design and construction of the experimental apparatus, as well as work on parallel ESR and spin echo measurements, was supported by the U.S. Department of Energy Office of Science National Quantum Information Science Research Centers as part of the Q-NEXT center. Work on high fidelity charge state readout and conditional charge state initialization was supported by the U.S. Department of Energy, Office of Science, Basic Energy Sciences under Award No. DE-SC0020313. Work on parallel shot-to-shot correlation measurements was supported by the NSF under Award No. 2326767.
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Publication:Cambria, M., Chand, S. & Kolkowitz, S. Scalable parallel measurement of individual nitrogen-vacancy centers. Preprint at https://doi.org/10.48550/arXiv.2408.11715 (2024).
