Engineering coherent spin and orbital transitions of diamond nitrogen-vacancy centers using a mechanical resonator

Gregory Fuchs

doi:10.1117/12.2610857

27 August 2021 Engineering coherent spin and orbital transitions of diamond nitrogen-vacancy centers using a mechanical resonator

Gregory Fuchs

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Proceedings Volume 11918, Photonics for Quantum 2020; 1191802 (2021) https://doi.org/10.1117/12.2610857
Event: Photonics for Quantum 2020, 2021, Online Only

Abstract

I will describe our experiments to drive spin and orbital resonance of single diamond nitrogen-vacancy (NV) centers using the gigahertz-frequency strain oscillations produced within a diamond acoustic resonator. Strain-based coupling between a resonator and a defect center takes advantage of intrinsic and reproducible coupling mechanisms while maintaining compatibility with conventional magnetic and optical techniques, thus providing new functionality for quantum-enhanced sensing and quantum information processing. Using a spin-strain interaction at room temperature, we demonstrate coherent spin control and spin coherence protection. At cryogenic temperatures, we use orbital-strain interactions driven by a diamond acoustic resonator to study multi-phonon orbital resonance of a single NV center. Additionally, I’ll describe our efforts to enhance electron-phonon coupling by engineering mechanical resonators with small modal volumes based a semi-confocal acoustic cavity.

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Gregory Fuchs "Engineering coherent spin and orbital transitions of diamond nitrogen-vacancy centers using a mechanical resonator", Proc. SPIE 11918, Photonics for Quantum 2020, 1191802 (27 August 2021); https://doi.org/10.1117/12.2610857

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