Multiparameter quantum sensing and magnetic communications with a hybrid dc and rf optically pumped magnetometer
arXiv:2308.14214 · doi:10.1103/PhysRevApplied.21.034054
Abstract
We introduce and demonstrate a hybrid optically pumped magnetometer (HOPM) that simultaneously measures one dc field component and one rf field component quadrature with a single atomic spin ensemble. The HOPM achieves sub-pT/ sensitivity for both dc and rf fields, and is limited in sensitivity by spin projection noise at low frequencies and by photon shot noise at high frequencies. We demonstrate with the HOPM a new application of multiparameter quantum sensing: background-cancelling spread spectrum magnetic communication. We encode a digital message as rf amplitude, spread among sixteen channels from \SI{29}{\kilo\hertz} to \SI{33}{\kilo\hertz} in a noisy magnetic environment, and observe quantum-noise-limited rf magnetic signal recovery enabled by quantum-noise-limited dc noise cancellation, reaching noise rejection of \SI{15}{\decibel} at \SI{100}{\hertz} and more than \SI{20}{\decibel} at \SI{60}{\hertz} and below. We measure signal fidelity versus signal strength and extrinsic noise in communication of a short text message. The combination of high sensitivity, quantum-noise-limited performance, and real-world application potential makes the HOPM ideally suited for study of high-performance multiparameter quantum sensing.
10 pages, 6 figures
References in corpus (40)
- Quantum sensing
- Quantum metrology with nonclassical states of atomic ensembles
- Enhancing the sensitivity of the LIGO gravitational wave detector by using squeezed states of light
- On the Improvement of Frequency Stardards with Quantum Entanglement
- Super-resolving phase measurements with a multi-photon entangled state
- Quantum Fisher information matrix and multiparameter estimation
- Implementation of Cavity Squeezing of a Collective Atomic Spin
- Quantum enhanced measurements without entanglement
- Quantum noise limited and entanglement-assisted magnetometry
- Magnetic sensitivity beyond the projection noise limit by spin squeezing
- Multi-parameter estimation in networked quantum sensors
- Multi-parameter Quantum Metrology
- Squeezed-Light Optical Magnetometry
- Quantum back action evading measurement of motion in a negative mass reference frame
- Multi-parameter estimation beyond Quantum Fisher Information
- Frequency-Dependent Squeezing for Advanced LIGO
- Entanglement-enhanced probing of a delicate material system
- Multiparameter Quantum Metrology of Incoherent Point Sources: Towards Realistic Superresolution
- Measurements with prediction and retrodiction on the collective spin of 10^{11} atoms beat the standard quantum limit
- Detection of NMR signals with a radio-frequency atomic magnetometer
- On quantumness in multi-parameter quantum estimation
- High Bandwidth Atomic Magnetometery with Continuous Quantum Non-demolition Measurements
- Generation of a squeezed state of an oscillator by stroboscopic back-action-evading measurement
- Measurement-induced nonlocal entanglement in a hot, strongly-interacting atomic system
- Quantum Enhanced Magnetometer with Low-Frequency Squeezing
- Experimental multiphase estimation on a chip
- Simultaneous tracking of spin angle and amplitude beyond classical limits
- Active Underwater Detection with an Array of Atomic Magnetometers
- LIGOs Quantum Response to Squeezed States
- Optimal and Variational Multi-Parameter Quantum Metrology and Vector Field Sensing
- Quantum-limited estimation of range and velocity
- Entanglement-enhanced radio-frequency field detection and waveform sensing
- Quantum-enhanced rubidium atomic magnetometer based on Faraday rotation via 795-nm Stokes operator squeezed light
- Effects of spin-exchange collisions on the fluctuation spectra of hot alkali-metal vapors
- Entanglement-enhanced magnetic induction tomography
- Entanglement-enhanced phase estimation without prior phase information
- Multiparameter quantum metrology in the Heisenberg Limit regime: many repetition scenario vs. full optimization
- Improving Short-Term Stability in Optical Lattice Clocks by Quantum Nondemolition Measurements
- Spin noise spectroscopy of a noise-squeezed atomic state
- Parametric amplification and noise-squeezing in room temperature atomic vapours
Cited by in corpus (4)
- Functionalized mm-scale vapor cells for alkali-metal spectroscopy and magnetometry
- Accurate vector optically pumped magnetometer with microwave-driven Rabi frequency measurements
- Performance of a radio-frequency two-photon atomic magnetometer in different magnetic induction measurement geometries
- Optimal and efficient inference tools for field tracking with precessing spins