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

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

Baier, S. (TU Delft QID/Hanson Lab; TU Delft QuTech Advanced Research Centre; Kavli institute of nanoscience Delft)
Bradley, C.E. (TU Delft QID/Taminiau Lab; TU Delft QuTech Advanced Research Centre; Kavli institute of nanoscience Delft)
Middelburg, T. (TU Delft BUS/Spider; TU Delft QuTech Advanced Research Centre; Kavli institute of nanoscience Delft)
Dobrovitski, V.V. (TU Delft QID/Dobrovitski Group; TU Delft QuTech Advanced Research Centre; Kavli institute of nanoscience Delft)
Taminiau, T.H. (TU Delft QID/Taminiau Lab; TU Delft QuTech Advanced Research Centre; Kavli institute of nanoscience Delft)
Hanson, R. (TU Delft QID/Hanson Lab; TU Delft QN/Hanson Lab; TU Delft QuTech Advanced Research Centre; Kavli institute of nanoscience Delft)

2020

The neutral charge state plays an important role in quantum information and sensing applications basedon nitrogen-vacancy centers. However, the orbital and spin dynamics remain unexplored. Here, we useresonant excitation of single centers to directly reveal the fine structure, enabling selective addressing ofspin-orbit states. Through pump-probe experiments, we find the orbital relaxation time (430 ns at 4.7 K)and measure its temperature dependence up to 11.8 K. Finally, we reveal the spin relaxation time (1.5 s) andrealize projective high-fidelity single-shot readout of the spin state (≥98%).

http://resolver.tudelft.nl/uuid:b9b4d4f0-4768-4bee-8031-49e7774190dd

https://doi.org/10.1103/PhysRevLett.125.193601

0031-9007

Physical Review Letters, 125 (19)

Institutional Repository

journal article

© 2020 S. Baier, C.E. Bradley, T. Middelburg, V.V. Dobrovitski, T.H. Taminiau, R. Hanson