Quantum-assisted Distortion-free audio signal sensing
arXiv:2111.04100 · doi:10.1038/s41467-022-32150-1
Abstract
Quantum sensors are keeping the cutting-edge sensitivities in metrology. However, for high-sensitive measurements of arbitrary signals, limitations in linear dynamic range could introduce distortions when sensing the frequency, magnitude and phase of unknown signals. Here, we overcome these limitations with advanced sensing protocol that combines quantum phase-sensitive detection with heterodyne readout. We present theoretical and experimental investigations using nitrogen-vacancy centers in diamond, showing the ability to sense radio signals with a 98 dB linear dynamic range, a 31 pT/Hz sensitivity, and arbitrary frequency resolution. Further, we perform the quantum-assisted distortion-free audio signal (melody, speech) sensing with high fidelity. The methods developed here could broaden the horizon for quantum sensors towards applications in telecommunication, where high-fidelity and low-distortion at multiple frequency bands within small sensing volumes are required.
arXiv comment30 pages, 7 figures
References in corpus (32)
- High-sensitivity diamond magnetometer with nanoscale resolution
- Sensitivity Optimization for NV-Diamond Magnetometry
- An atomic clock with instability
- Solid-state electronic spin coherence time approaching one second
- High precision nano scale temperature sensing using single defects in diamond
- Optical magnetic detection of single-neuron action potentials using quantum defects in diamond
- Nuclear spin gyroscope based on an atomic co-magnetometer
- Sub-millihertz magnetic spectroscopy with a nanoscale quantum sensor
- A Compact, High Performance Atomic Magnetometer for Biomedical Applications
- Quantum sensing with arbitrary frequency resolution
- Simultaneous Broadband Vector Magnetometry Using Solid-State Spins
- Waveguide-coupled Rydberg spectrum analyzer from 0 to 20 GHz
- Single-spin magnetometry with multi-pulse sensing sequences
- Diamond magnetometer enhanced by ferrite flux concentrators
- High Bandwidth Atomic Magnetometery with Continuous Quantum Non-demolition Measurements
- Microwave-free magnetometry with nitrogen-vacancy centers in diamond
- Robust and accurate electric field sensing with solid state spin ensembles
- Robust High-Dynamic-Range Vector Magnetometry via Nitrogen-Vacancy Centers in Diamond
- Diamond magnetometry and gradiometry towards subpicotesla DC field measurement
- Optimizing a Dynamical Decoupling Protocol for Solid-State Electronic Spin Ensembles in Diamond
- Single Defect Center Scanning Near-Field Optical Microscopy on Graphene
- High-sensitivity, spin-based electrometry with an ensemble of nitrogen-vacancy centers in diamond
- Zero-field magnetometry based on nitrogen-vacancy ensembles in diamond
- Integrated optically pumped magnetometer for measurements within Earth's magnetic field
- Heterodyne Sensing of Microwaves with a Quantum Sensor
- High-frequency and high-field optically detected magnetic resonance of nitrogen-vacancy centers in diamond
- Single Spin Optically Detected Magnetic Resonance with E-Band Microwave Resonators
- 3D Uniform Manipulation of NV Centers in Diamond Using a Dielectric Resonator Antenna
- Phase sensitive quantum spectroscopy with high frequency resolution
- Precise Spectroscopy of High-Frequency Oscillating Fields with a Single-Qubit Sensor
- Dual-channel lock-in magnetometer with a single spin in diamond
- Ramsey interferometry with oppositely detuned fields