Coherent control of NV− centers in diamond in a quantum teaching lab

ORAL

Abstract

The room temperature compatibility of the negatively-charged nitrogen-vacancy (NV−) in diamond makes it the ideal quantum system for a university teaching lab. Here, we describe a low-cost experimental setup for coherent control experiments on the electronic spin state of the NV− center. We implement spin-relaxation measurements, optically-detected magnetic resonance, Rabi oscillations, and dynamical decoupling sequences on an ensemble of NV− centers. Hyperfine interactions can also be observed clearly in the measurement. The relatively short time required to perform each of these experiments (<10 minutes) demonstrates the feasibility of the setup in a teaching lab. Learning outcomes include a basic understanding of quantum spin systems, magnetic resonance, the rotating frame, Bloch spheres, and pulse sequence development

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Presenters

  • Yang Yang

    • The University of New South Wales

Authors

  • Yang Yang

    • The University of New South Wales

  • Vikas Sewani

    • The University of New South Wales

  • Jarryd Pla

    • Electrical Engineering and Telecommunications, UNSW
    • The University of New South Wales

  • Arne Laucht

    • Univ of New South Wales
    • The University of New South Wales