Robust Noise Suppression and Quantum Sensing by Continuous Phased Dynamical Decoupling
At a Glance
Section titled “At a Glance”| Metadata | Details |
|---|---|
| Publication Date | 2025-03-26 |
| Journal | Physical Review Letters |
| Authors | Daniel Louzon, Genko T. Genov, Nicolas Staudenmaier, Florian Frank, Johannes Lang |
| Institutions | Hebrew University of Jerusalem, Element Six (Germany) |
| Citations | 1 |
| Analysis | Full AI Review Included |
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Executive Summary
Section titled “Executive Summary”- Introduces continuous phased dynamical decoupling (CPDD) for robust quantum sensing and noise suppression.
- CPDD uses a continuous driving field with discrete phase changes, eliminating the need for short, high-power pulses.
- Suitable for experiments with limited driving power or high magnetic fields, such as nuclear magnetic resonance (NMR).
- Demonstrates application to nanoscale NMR, achieving microhertz uncertainty in signal frequency estimation.
- CPDD improves robustness against amplitude and environmental frequency noise compared to conventional continuous dynamical decoupling (CDD).
- Experimentally validated with nitrogen-vacancy (NV) centers in diamond.
- Expands applicability of dynamical decoupling in various systems like NV centers, trapped ions, and trapped atoms.
Technical Specifications
Section titled “Technical Specifications”| Parameter | Value | Unit | Context
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| Rabi Frequency (Ω) | 2π 14 MHz | MHz | Low Field Pulsed DD ولكن ولكن ولكن ولكن
View Original Abstract
We propose and demonstrate experimentally continuous phased dynamical decoupling (CPDD), where we apply a continuous field with discrete phase changes for quantum sensing and robust compensation of environmental and amplitude noise. CPDD does not use short pulses, making it particularly suitable for experiments with limited driving power or nuclear magnetic resonance at high magnetic fields. It requires control of the timing of the phase changes, offering much greater precision than the Rabi frequency control needed in standard continuous sensing schemes. We successfully apply our method to nanoscale nuclear magnetic resonance and combine it with quantum heterodyne detection, achieving microhertz uncertainty in the estimated signal frequency for a 120 s measurement. Our Letter expands significantly the applicability of dynamical decoupling and opens the door for a wide range of experiments, e.g., in nitrogen-vacancy centers, trapped ions, or trapped atoms.