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

Journal article (2020)

Authors

S. Baier QID/Hanson Lab - QuTech Advanced Research Centre , Kavli institute of nanoscience Delft, QuTech Advanced Research Centre
C.E. Bradley QuTech Advanced Research Centre, QID/Taminiau Lab - QuTech Advanced Research Centre , Kavli institute of nanoscience Delft
T. Middelburg QuTech Advanced Research Centre, Kavli institute of nanoscience Delft, BUS/Spider - QuTech Advanced Research Centre
V.V. Dobrovitski QID/Dobrovitski Group - QuTech Advanced Research Centre , QuTech Advanced Research Centre, Kavli institute of nanoscience Delft
T.H. Taminiau Kavli institute of nanoscience Delft, QuTech Advanced Research Centre, QID/Taminiau Lab - QuTech Advanced Research Centre
R. Hanson QID/Hanson Lab - QuTech Advanced Research Centre , QuTech Advanced Research Centre, Kavli institute of nanoscience Delft, QN/Hanson Lab - AS
Research Group
QN/Hanson Lab (AS) (TU Delft)
Copyright: © 2020 S. Baier, C.E. Bradley, T. Middelburg, V.V. Dobrovitski, T.H. Taminiau, R. Hanson
DOI
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https://doi.org/10.1103/PhysRevLett.125.193601
More Info
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Published Date

2020

Language

English

Faculty

Applied Sciences

Department

QN/Quantum Nanoscience

Research Group

QN/Hanson Lab

Abstract

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%).