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arXiv · 2407.16057

Ramsey interferometry of nuclear spins in diamond using stimulated Raman adiabatic passage

Sean Lourette·Andrey Jarmola·Jabir Chathanathil·Sebastián C. Carrasco·Dmitry Budker·Svetlana A. Malinovskaya·A. Glen Birdwell·Tony Ivanov·Vladimir S. Malinovsky
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Abstract

We report the first experimental demonstration of stimulated Raman adiabatic passage (STIRAP) in nuclear-spin transitions of $^{14}$N within nitrogen-vacancy (NV) color centers in diamond. It is shown that the STIRAP technique suppresses the occupation of the intermediate state, which is a crucial factor for improvements in quantum sensing technology. Building on that advantage, we develop and implement a generalized version of the Ramsey interferometric scheme, employing half-STIRAP pulses to perform the necessary quantum-state manipulation with high fidelity. The enhanced robustness of the STIRAP-based Ramsey scheme to variations in the pulse parameters is experimentally demonstrated, showing good agreement with theoretical predictions. Our results pave the way for improving the long-term stability of diamond-based sensors, such as gyroscopes and frequency standards.

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Sean Lourette, Andrey Jarmola, Jabir Chathanathil, Sebastián C. Carrasco, Dmitry Budker, Svetlana A. Malinovskaya, A. Glen Birdwell, Tony Ivanov, Vladimir S. Malinovsky. 2024-07-22. Ramsey interferometry of nuclear spins in diamond using stimulated Raman adiabatic passage. https://arxiv.org/abs/2407.16057

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