Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Atomic Nuclei: Nuclear Relaxation Processes

Atomic Nuclei: Nuclear Relaxation Processes

In the absence of an external magnetic field, nuclear spin states are degenerate and randomly oriented. When a magnetic field is applied, the spins begin to precess and orient themselves along (lower energy) or against (higher energy) the direction of the field. At equilibrium, a slight excess population of spins exists in the lower energy state. Because the direction of the magnetic field is fixed as the z-axis, the precessing magnetic moments are randomly oriented around the z-axis.

Atomic Spectroscopy: Effects of Temperature

Atomic Spectroscopy: Effects of Temperature

Atomization, converting samples into gas-phase atoms and ions, is essential for atomic spectroscopy. The flame temperature required for atomization affects the efficiency of the atomic spectroscopic methods by increasing the atomization efficiency and the relative population of the excited and ground states.
At thermal equilibrium, the relative populations of excited and ground state atoms can be estimated using the Maxwell–Boltzmann distribution. For example, an increase in temperature...

Atomic Emission Spectroscopy: Interference

Atomic Emission Spectroscopy: Interference

In atomic emission spectroscopy (AES), high-temperature atomizers excite a broad range of elements and molecules that generate complex emissions from sources such as oxides, hydroxides, and flame combustion products in the flame or plasma. Several strategies can be employed to minimize spectral interferences caused by overlapping emission lines or bands. These include increasing instrument resolution, choosing alternative emission lines, optimally placing the detector in low-background regions,...

Atomic Emission Spectroscopy: Instrumentation

Atomic Emission Spectroscopy: Instrumentation

The instrumentation of atomic emission spectrometry (AES) involves various components, including atomization devices that convert samples into gas-phase atoms and ions. There are two main types of atomization devices: continuous and discrete atomizers. Continuous atomizers, like plasmas and flames, introduce samples in a constant stream, while discrete atomizers inject individual samples using syringes or autosamplers. The most common discrete atomizer is the electrothermal atomizer.

Atomic Emission Spectroscopy: Overview

Atomic Emission Spectroscopy: Overview

Atomic emission spectroscopy (AES) is an analytical technique used to determine the elemental composition of a sample by analyzing the light emitted from excited atoms. In AES, atoms in a sample are excited to higher energy levels by thermal energy from high-temperature sources, such as plasma, arcs, or sparks. When these excited atoms return to lower energy states, they emit light at specific wavelengths characteristic of each element. The resulting atomic emission spectrum, which consists of...

Atomic Absorption Spectroscopy: Interference

Atomic Absorption Spectroscopy: Interference

Interference leads to systematic error in atomic absorption (AA) measurements by enhancing or diminishing the analytical signal or the background. These interferences can be grouped into three main categories: spectral interference, chemical interference, and physical interference.
Spectral interference occurs when signals from other elements or molecules overlap with the analyte signal, falsely elevating or masking the analyte's absorbance. This interference can be corrected using Zeeman,...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Zero- to ultralow-field J-spectroscopy with a diamond magnetometer.

Communications chemistry·2026

Same author

Enabling nondestructive observation of electrolyte composition in batteries with ultralow-field nuclear magnetic resonance.

Chemical science·2026

Same author

Quantum magnetic J-oscillators.

Nature communications·2026

Same author

Constraints on axion dark matter by distributed intercity quantum sensors.

Nature·2026

Same author

Quantum Imaging of Ferromagnetic van der Waals Magnetic Domain Structures at Ambient Conditions.

ACS applied materials & interfaces·2025

Same author

Observation of continuous time crystals and quasi-crystals in spin gases.

Nature communications·2025

Search research articles

Related Experiment Video

Updated: May 22, 2025

Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving

Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving

Published on: March 30, 2017

Amplification mechanism with interacting atomic gases.

Min Jiang^1,2,3, Yushu Qin^1,2,3, Yuanhong Wang^1,2,3

¹Laboratory of Spin Magnetic Resonance, School of Physical Sciences, University of Science and Technology of China, Hefei 230026, China.

Proceedings of the National Academy of Sciences of the United States of America

|May 8, 2025

Summary

This summary is machine-generated.

Interacting spins in alkali-metal and noble gases amplify magnetic fields by two orders of magnitude, enhancing quantum sensing. This study also reveals magnetic noise suppression, advancing precision measurement technologies.

Keywords:

alkali metal interacting spins noble gas quantum amplification

More Related Videos

Gradient Echo Quantum Memory in Warm Atomic Vapor

Gradient Echo Quantum Memory in Warm Atomic Vapor

Published on: November 11, 2013

Non-equilibrium Microwave Plasma for Efficient High Temperature Chemistry

Non-equilibrium Microwave Plasma for Efficient High Temperature Chemistry

Published on: August 1, 2017

Related Experiment Videos

Last Updated: May 22, 2025

Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving

Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving

Published on: March 30, 2017

Gradient Echo Quantum Memory in Warm Atomic Vapor

Gradient Echo Quantum Memory in Warm Atomic Vapor

Published on: November 11, 2013

Non-equilibrium Microwave Plasma for Efficient High Temperature Chemistry

Non-equilibrium Microwave Plasma for Efficient High Temperature Chemistry

Published on: August 1, 2017

Area of Science:

Quantum physics
Atomic, molecular, and optical physics

Background:

Quantum amplifiers utilizing atoms, molecules, and electrons advance precision measurements.
Masers and lasers are examples of extremely low-noise quantum devices.

Purpose of the Study:

Investigate signal amplification in interacting spins.
Observe magnetic field amplification using alkali-metal and noble gas mixtures.
Explore amplification and deamplification phenomena in interacting spin systems.

Main Methods:

Utilized mixtures of interacting alkali-metal and noble gases.
Studied signal amplification of interacting spins.
Examined amplification and deamplification phenomena arising from atomic collisions.
Investigated the effect of varying interaction strength between spin gases.

Main Results:

Demonstrated two distinct amplification phenomena in interacting systems, unlike noninteracting ones.
Achieved magnetic field amplification by at least two orders of magnitude.
Enhanced magnetic sensitivity to the femtotesla per root hertz level.
Observed magnetic noise deamplification by at least one order of magnitude in specific frequency regimes.

Conclusions:

Interactions from atomic collisions are key to novel amplification and deamplification phenomena.
These phenomena significantly enhance quantum sensing capabilities and magnetic sensitivity.
Exploration of strong-coupling regimes reveals new amplification effects for precision measurements.