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arXiv · 2007.14673

Orbital and Spin Dynamics of Single Neutrally-Charged Nitrogen-Vacancy Centers in Diamond

S. Baier·C. E. Bradley·T. Middelburg·V. V. Dobrovitski·T. H. Taminiau·R. Hanson
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Abstract

The neutral charge state plays an important role in quantum information and sensing applications based on nitrogen-vacancy centers. However, the orbital and spin dynamics remain unexplored. Here, we use resonant excitation of single centers to directly reveal the fine structure, enabling selective addressing of spin-orbit states. Through pump-probe experiments, we find the orbital relaxation time (430ns at 4.7K) and measure its temperature-dependence up to 11.8K. Finally we reveal the spin relaxation time (1.5s), and realize projective high-fidelity single-shot readout of the spin state ($\geq98\%$).

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S. Baier, C. E. Bradley, T. Middelburg, V. V. Dobrovitski, T. H. Taminiau, R. Hanson. 2020-07-29. Orbital and Spin Dynamics of Single Neutrally-Charged Nitrogen-Vacancy Centers in Diamond. https://doi.org/10.1103/physrevlett.125.193601

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