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

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. The relatively short times required to perform each of these experiments (<10 minutes) demonstrate the feasibility of the setup in a teaching lab. Learning outcomes include basic understanding of quantum spin systems, magnetic resonance, the rotating frame, Bloch spheres, and pulse sequence development.

arXiv comment16 pages, 9 figures

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• Preparing students for the quantum information revolution: Interdisciplinary teaching, curriculum development, and advising in quantum information science and engineering
• Variable bandwidth, high efficiency microwave resonator for control of spin-qubits in nitrogen-vacancy centers
• Indirect Control of the ${}^{29}\mathrm{Si}{\mathrm{V}}^{-}$ Nuclear Spin in Diamond
• Building Bridges in Quantum Information Science Education: Expert Insights to Guide Framework Development for Interdisciplinary Teaching and Evolution of Common Language
• Do we have a quantum computer? Expert perspectives on current status and future prospects
• Multi-shot readout error benchmark of the nitrogen-vacancy center's electronic qubit