Low field nano-NMR via three-level system control

Abstract

Conventional control strategies for NV centers in quantum sensing are based on a two-level model of their triplet ground state. However, this approach fails in regimes of weak bias magnetic fields or strong microwave pulses, as we demonstrate. To overcome this limitation, we propose a novel control sequence that exploits all three levels by addressing a hidden Raman configuration with microwave pulses tuned to the zero-field transition. We report excellent performance in typical dynamical decoupling sequences, opening up the possibility for nano-NMR operation in low-field environments.

7 pages, 10 figures

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Cited by in corpus (6)

• Zero- and Low-Field Sensing with Nitrogen Vacancy Centers
• Low-frequency quantum sensing
• Phased Geometric Controls of V-Shaped Three-Level System for Zero-field Quantum Sensing
• Low frequency signal detection via correlated Ramsey measurements
• High-resolution spectroscopy of a single nitrogen-vacancy defect at zero magnetic field
• Controlling discrete time crystals via single-site operations in zero-field diamond quantum simulators