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

• URL: http://arxiv.org/abs/2007.14673v1
• Date: Wed, 29 Jul 2020 08:39:07 GMT
• Title: Orbital and Spin Dynamics of Single Neutrally-Charged Nitrogen-Vacancy Centers in Diamond
• Authors: S. Baier, C. E. Bradley, T. Middelburg, V. V. Dobrovitski, T. H. Taminiau, R. Hanson
• Abstract summary: We use resonant excitation of single centers to reveal the fine structure of the neutral charge state. We realize projective high-fidelity single-shot readout of the spin state.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• 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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