Identification and control of electron-nuclear spin defects in diamond

Abstract

We experimentally demonstrate an approach to scale up quantum devices by harnessing spin defects in the environment of a quantum probe. We follow this approach to identify, locate, and control two electron-nuclear spin defects in the environment of a single nitrogen-vacancy center in diamond. By performing spectroscopy at various orientations of the magnetic field, we extract the unknown parameters of the hyperfine and dipolar interaction tensors, which we use to locate the two spin defects and design control sequences to initialize, manipulate, and readout their quantum state. We finally create quantum coherence among the three electron spins, paving the way for the creation of genuine tripartite entanglement. This approach will be useful to assemble multi-spin quantum registers for applications in quantum sensing and quantum information processing.

arXiv comment11 pages, 6 figures

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Cited by in corpus (14)

• Entanglement of dark electron-nuclear spin defects in diamond
• Single-preparation unsupervised quantum machine learning: concepts and applications
• Electric-Field-Induced Coherent Control of Nitrogen Vacancy Centers
• Dynamical quantum phase transition in diamond: applications in quantum metrology
• Probing the Evolution of Electron Spin Wavefunction of NV Center in diamond via Pressure Tuning
• Control of an environmental spin defect beyond the coherence limit of a central spin
• Self-consistent noise characterization of quantum devices
• Digital noise spectroscopy with a quantum sensor
• Quantum spin probe of single charge dynamics
• Mapping single electron spins with magnetic tomography
• Detection of Electron Paramagnetic Resonance of Two Electron Spins Using a Single NV Center in Diamond
• Beyond the density operator and Tr(ρA): Exploiting the higher-order statistics of random-coefficient pure states for quantum information processing
• Robotic vectorial field alignment for spin-based quantum sensors
• Quantum decoherence of nitrogen-vacancy spin ensembles in a nitrogen spin bath in diamond under dynamical decoupling