Randomisation of Pulse Phases for Unambiguous and Robust Quantum Sensing

Abstract

We develop theoretically and demonstrate experimentally a universal dynamical decoupling method for robust quantum sensing with unambiguous signal identification. Our method uses randomisation of control pulses to suppress simultaneously two types of errors in the measured spectra that would otherwise lead to false signal identification. These are spurious responses due to finite-width $\pi$ pulses, as well as signal distortion caused by $\pi$ pulse imperfections. For the cases of nanoscale nuclear spin sensing and AC magnetometry, we benchmark the performance of the protocol with a single nitrogen vacancy centre in diamond against widely used non-randomised pulse sequences. Our method is general and can be combined with existing multipulse quantum sensing sequences to enhance their performance.

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• Quantum sensing
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Cited by in corpus (22)

• Single-molecule Scale Magnetic Resonance Spectroscopy using Nitrogen-Vacancy Centers in Diamond
• Quantum Metrology with Strongly Interacting Spin Systems
• Robust Dynamic Hamiltonian Engineering of Many-Body Spin Systems
• Practical applications of quantum sensing: a simple method to enhance sensitivity of Nitrogen-Vacancy-based temperature sensors
• Deep learning enhanced individual nuclear-spin detection
• Low field nano-NMR via three-level system control
• Efficient and robust signal sensing by sequences of adiabatic chirped pulses
• Robust Detection of High-Frequency Signals at the Nanoscale
• Enhancing the robustness of dynamical decoupling sequences with correlated random phases
• Robust Noise Suppression and Quantum Sensing by Continuous Phased Dynamical Decoupling
• Coherent manipulation of nuclear spins in the strong driving regime
• Hybrid Microwave Radiation Patterns for High-Fidelity Quantum Gates with Trapped Ions
• Detection of Molecular Transitions with Nitrogen-Vacancy Centers and Electron-Spin Labels
• Ambiguous Resonances in Multipulse Quantum Sensing with Nitrogen Vacancy Centers
• Phase-adaptive dynamical decoupling methods for robust spin-spin dynamics in trapped ions
• Bayesian-based hybrid method for rapid optimization of NV center sensors
• Digital Twin Simulations Toolbox of the Nitrogen-Vacancy Center in Diamond
• Quantum Memory Enhanced Multipoint Correlation Spectroscopy for Statistically Polarized NMR
• Protection of noisy multipartite entangled states of superconducting qubits via universally robust dynamical decoupling schemes
• Quantum Gates via Dynamical Decoupling of Central Qubit on IBMQ and 15NV Center in Diamond
• Controlling discrete time crystals via single-site operations in zero-field diamond quantum simulators
• Robust Dynamical Decoupling for the Manipulation of a Spin Network via a Single Spin