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arXiv · 2004.02643

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

Vikas K. Sewani·Hyma H. Vallabhapurapu·Yang Yang·Hannes R. Firgau·Chris Adambukulam·Brett C. Johnson·Jarryd J. Pla·Arne Laucht
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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.

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Vikas K. Sewani, Hyma H. Vallabhapurapu, Yang Yang, Hannes R. Firgau, Chris Adambukulam, Brett C. Johnson, Jarryd J. Pla, Arne Laucht. 2020-04-06. Coherent control of NV- centers in diamond in a quantum teaching lab. https://doi.org/10.1119/10.0001905

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