Results 21 to 30 of about 6,142 (212)

Towards a Practical Implementation of a Single-Beam All-Optical Non-Zero-Field Magnetic Sensor for Magnetoencephalographic Complexes

open access: yesSensors, 2022
We present a single-beam all-optical two-channel magnetic sensor scheme developed for biological applications such as non-zero-field magnetoencephalography and magnetocardiography.
Mikhail Petrenko, Anton Vershovskii
doaj   +1 more source

JOM-4S Overhauser Magnetometer and Sensitivity Estimation

open access: yesSensors, 2021
The Overhauser magnetometer is a scalar quantum magnetometer based on the dynamic nuclear polarization (DNP) effect in the Earth’s magnetic field.
Xiaorong Gong   +2 more
doaj   +1 more source

A High-Sensitivity Cesium Atomic Magnetometer Based on A Cesium Spectral Lamp

open access: yesApplied Sciences, 2023
Based on a low-noise cesium spectral lamp, a high-sensitivity self-oscillating cesium atomic magnetometer with a wide operating temperature range has been developed, solving problems with existing sensors such as a limited operating temperature range and
Yuan-Tian Lu   +7 more
doaj   +1 more source

Vector Overhauser magnetometer POS-4: experience and prospects of application [PDF]

open access: yesEPJ Web of Conferences, 2021
The results of practical use of a POS-4 vector magnetometer, developed by the Research Laboratory of Quantum Magnetometry, UrFU (Yekaterinburg) and based on POS Overhauser sensors, are presented.
Khomutov Sergey Y.   +11 more
doaj   +1 more source

Quantum-enhanced magnetometer with low-frequency squeezing [PDF]

open access: yesPhysical Review A, 2012
We report the demonstration of a magnetometer with noise-floor reduction below the shot-noise level. This magnetometer, based on a nonlinear magneto-optical rotation effect, is enhanced by the injection of a squeezed vacuum state into its input. The noise spectrum shows squeezed noise reduction of about 2 dB spanning from close to 100 Hz to several ...
Horrom, Travis   +3 more
openaire   +2 more sources

Imaging non-collinear antiferromagnetic textures via single spin relaxometry

open access: yesNature Communications, 2021
In this manuscript, Finco et al demonstrate the use of a quantum magnetometer based on a single NV centre for all-optical imaging of antiferromagnetic (AFM) spin textures.
Aurore Finco   +15 more
doaj   +1 more source

Quantum metrology in biochemical magnetometers [PDF]

open access: yes, 2021
Τα Ζεύγη Ιοντικών Ριζών (Radical-Ion Pairs) και οι βιοχημικές τους αντιδράσεις αποτελούν έναυσμα για τη μελέτη κβαντικών φαινομένων στα βιολογικά συστήματα. Αυτό οφείλεται στο ότι παρουσιάζουν μια σειρά φαινομένων που ανήκουν, και μπορούν να γίνουν κατανοητά, στο πεδίο της επιστήμης της κβαντικής πληροφορίας και ταυτόχρονα είναι κεντρικής σημασίας για ...
openaire   +1 more source

A quantum-chaotic cesium-vapor magnetometer [PDF]

open access: yesOptical, Opto-Atomic, and Entanglement-Enhanced Precision Metrology, 2019
Quantum-enhanced measurements represent the path towards the best measurement precision allowed by the laws of quantum mechanics. Known protocols usually rely on the preparation of entangled states and promise high or even optimal precision, but fall short in real-word applications because of the difficulty to generate entangled states and to protect ...
Fiderer, Lukas J., Braun, Daniel
openaire   +2 more sources

Critical Quantum Metrology in the Non-Linear Quantum Rabi Model

open access: yesEntropy, 2022
The quantum Rabi model (QRM) with linear coupling between light mode and qubit exhibits the analog of a second-order phase transition for vanishing mode frequency which allows for criticality-enhanced quantum metrology in a few-body system.
Zu-Jian Ying   +3 more
doaj   +1 more source

Construction and operation of a tabletop system for nanoscale magnetometry with single nitrogen-vacancy centers in diamond

open access: yesAIP Advances, 2020
A single nitrogen-vacancy (NV) center in diamond is a prime candidate for a solid-state quantum magnetometer capable of detecting single nuclear spins with prospective application to nuclear magnetic resonance (NMR) at the nanoscale.
Daiki Misonou   +5 more
doaj   +1 more source

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