Probing the dynamics of a nuclear spin bath in diamond through time-resolved central spin magnetometry

Abstract

Using fast electron spin resonance spectroscopy of a single nitrogen-vacancy defect in diamond, we demonstrate real-time readout of the Overhauser field produced by its nuclear spin environment under ambient conditions. These measurements enable narrowing the Overhauser field distribution by post-selection, corresponding to a conditional preparation of the nuclear spin bath. Correlations of the Overhauser field fluctuations are quantitatively inferred by analysing the Allan deviation over consecutive measurements. This method allows to extract the dynamics of weakly coupled nuclear spins of the reservoir.

arXiv comment10 pages, including main text and supplementary information

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• Introduction to Quantum Optimal Control for Quantum Sensing with Nitrogen-Vacancy Centers in Diamond
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• Nonvolatile quantum memory enables sensor unlimited nanoscale spectroscopy of finite quantum systems
• Non-flipping 13C spins in NV diamond: Hyperfine and Spatial Characteristics by DFT Simulation of the C510[NV]H252 Cluster
• Electron induced nanoscale nuclear spin relaxation probed by hyperpolarization injection
• Continuous microwave hole burning and population oscillations in a diamond spin ensemble
• Dynamical quantum phase transition in diamond: applications in quantum metrology
• Pulse-Enhanced Two-Photon Interference with Solid State Quantum Emitters
• Room-temperature Composite-pulses for Robust Diamond Magnetometry
• Silicon T centre hyperfine structure and memory protection schemes
• Tuning Spectral Properties of Individual and Multiple Quantum Emitters in Noisy Environments
• Hilbert Space Fragmentation and Subspace Scar Time-Crystallinity in Driven Homogeneous Central-Spin Models