Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Magnetostatic Boundary Conditions01:28

Magnetostatic Boundary Conditions

1.5K
An electric field suffers a discontinuity at a surface charge. Similarly, a magnetic field is discontinuous at a surface current. The perpendicular component of a magnetic field is continuous across the interface of two magnetic mediums. In contrast, its parallel component, perpendicular to the current, is discontinuous by the amount equal to the product of the vacuum permeability and the surface current. Like the scalar potential in electrostatics, the vector potential is also continuous...
1.5K
Magnetic Moment of an Electron01:23

Magnetic Moment of an Electron

2.6K
Electrons revolving around a nucleus are analogous to a circular current carrying loop. This current produces a magnetic dipole moment proportional to the electron's orbital angular momentum. Since the orbital angular momentum is quantized in terms of the reduced Planck's constant, the dipole moment is quantized in the Bohr Magneton. The value of the Bohr magneton is 9.27 x 10-24 Am2. Electrons also have an intrinsic spin angular momentum, and the associated spin magnetic moment is...
2.6K
Magnetic Fields01:27

Magnetic Fields

7.0K
A moving charge or a current creates a magnetic field in the surrounding space, in addition to its electric field. The magnetic field exerts a force on any other moving charge or current that is present in the field. Like an electric field, the magnetic field is also a vector field. At any position, the direction of the magnetic field is defined as the direction in which the north pole of a compass needle points.
A magnetic field is defined by the force that a charged particle experiences...
7.0K
Magnetic Vector Potential01:15

Magnetic Vector Potential

1.4K
In electrostatics, the electric field can be written as the negative gradient of the potential. In magnetostatics, the zero divergence of the magnetic field ensures that the magnetic field can be expressed as the curl of a vector potential. This potential is known as the magnetic vector potential.
Consider an ideal solenoid with n turns per unit length and radius R. If I is the current through the solenoid, the magnetic field inside the solenoid is expressed as the product of vacuum...
1.4K
Magnetic Susceptibility and Permeability01:31

Magnetic Susceptibility and Permeability

2.1K
In linear magnetic materials, like paramagnets and diamagnets, magnetization is proportional to the magnetic field intensity. The constant of proportionality, a dimensionless number, is called magnetic susceptibility. The value of the susceptibility depends on the type of material.
When diamagnetic materials are placed under an external magnetic field, the moments opposite to the field are induced. Hence, the susceptibility for diamagnets has a minimal negative value of 10-5–10-6. Since...
2.1K
Magnetic Field due to Moving Charges01:23

Magnetic Field due to Moving Charges

11.2K
A stationary charge creates and interacts with the electric field, while a moving charge creates a magnetic field.
Consider a point charge moving with a constant velocity. Like the electric field, the magnetic field at any point is directly proportional to the magnitude of the charge and inversely proportional to the square of the distance between the source point and the field point. However, unlike the electric field, the magnetic field is always perpendicular to the plane containing the line...
11.2K

You might also read

Related Articles

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

Sort by
Same author

Probing subradiant dynamics in cold atomic ensembles via population and emitted light measurements.

Optics letters·2026
Same author

Traceable random numbers from a non-local quantum advantage.

Nature·2025
Same author

A Discussion on Sensitivity Optimization in Reflective-Mode Phase-Variation Permittivity Sensors Based on Semi-Lumped Resonators.

Sensors (Basel, Switzerland)·2025
Same author

In Situ Measurements of Light Diffusion in an Optically Dense Atomic Ensemble.

Physical review letters·2024
Same author

Live magnetic observation of parahydrogen hyperpolarization dynamics.

Proceedings of the National Academy of Sciences of the United States of America·2024
Same author

Design of novel highly sensitive sensors for crack detection in metal surfaces: theoretical foundation and experimental validation.

Scientific reports·2023
Same journal

Erratum: Bacterial Turbulence at Compressible Fluid Interfaces [Phys. Rev. Lett. 136, 138301 (2026)].

Physical review letters·2026
Same journal

Unveiling Light-Quark Yukawa Flavor Structure via Dihadron Fragmentation at Lepton Colliders.

Physical review letters·2026
Same journal

Adaptable Route to Fast Coherent State Transport via Bang-Bang-Bang Protocols.

Physical review letters·2026
Same journal

Topological Transition and Emergence of Elasticity of Dislocation in Skyrmion Lattice: Beyond Kittel's Magnetic-Polar Analogy.

Physical review letters·2026
Same journal

Pound-Drever-Hall Method for Superconducting-Qubit Readout.

Physical review letters·2026
Same journal

Coupling a ^{73}Ge Nuclear Spin to an Electrostatically Defined Quantum Dot in Silicon.

Physical review letters·2026
See all related articles

Related Experiment Video

Updated: Dec 21, 2025

Assessing the Influence of Personality on Sensitivity to Magnetic Fields in Zebrafish
07:47

Assessing the Influence of Personality on Sensitivity to Magnetic Fields in Zebrafish

Published on: March 18, 2019

7.0K

Bose-Einstein Condensate Comagnetometer.

Pau Gomez1,2, Ferran Martin1,2, Chiara Mazzinghi1

  • 1ICFO-Institut de Ciències Fotòniques, The Barcelona Institute of Science and Technology, 08860 Castelldefels (Barcelona), Spain.

Physical Review Letters
|May 16, 2020
PubMed
Summary
This summary is machine-generated.

This study introduces a novel comagnetometer using rubidium-87 Bose-Einstein condensates. It achieves high common-mode rejection, enabling sensitive detection of subtle physical effects.

More Related Videos

High-Speed Magnetic Tweezers for Nanomechanical Measurements on Force-Sensitive Elements
08:50

High-Speed Magnetic Tweezers for Nanomechanical Measurements on Force-Sensitive Elements

Published on: May 12, 2023

2.6K
Method for Simultaneous fMRI/EEG Data Collection during a Focused Attention Suggestion for Differential Thermal Sensation
06:33

Method for Simultaneous fMRI/EEG Data Collection during a Focused Attention Suggestion for Differential Thermal Sensation

Published on: January 5, 2014

12.2K

Related Experiment Videos

Last Updated: Dec 21, 2025

Assessing the Influence of Personality on Sensitivity to Magnetic Fields in Zebrafish
07:47

Assessing the Influence of Personality on Sensitivity to Magnetic Fields in Zebrafish

Published on: March 18, 2019

7.0K
High-Speed Magnetic Tweezers for Nanomechanical Measurements on Force-Sensitive Elements
08:50

High-Speed Magnetic Tweezers for Nanomechanical Measurements on Force-Sensitive Elements

Published on: May 12, 2023

2.6K
Method for Simultaneous fMRI/EEG Data Collection during a Focused Attention Suggestion for Differential Thermal Sensation
06:33

Method for Simultaneous fMRI/EEG Data Collection during a Focused Attention Suggestion for Differential Thermal Sensation

Published on: January 5, 2014

12.2K

Area of Science:

  • Atomic physics
  • Quantum optics
  • Condensed matter physics

Background:

  • Comagnetometers are crucial for precision measurements.
  • Spinor Bose-Einstein condensates (BECs) offer unique quantum properties for sensing.
  • Previous methods faced limitations in sensitivity and coherence time.

Purpose of the Study:

  • To develop a high-sensitivity comagnetometer using a rubidium-87 BEC.
  • To leverage the opposing gyromagnetic ratios of hyperfine states for enhanced common-mode rejection.
  • To extend the coherence time of the magnetometer for longer measurement durations.

Main Methods:

  • Utilizing the f=1 and f=2 ground state hyperfine manifolds of a ^{87}Rb spinor BEC as colocated magnetometers.
  • Employing nondestructive Faraday rotation probing to independently measure transverse magnetizations and azimuth angles.
  • Implementing spin-dependent interactions to suppress hyperfine-relaxing collisions in the f=2 manifold.

Main Results:

  • Demonstrated a common-mode rejection of 44.0(8) dB, consistent with theoretical predictions.
  • Extended the magnetometer coherence time to approximately 1 second.
  • Successfully utilized spin-dependent interactions to inhibit hyperfine-relaxing collisions.

Conclusions:

  • The developed ^{87}Rb BEC comagnetometer offers a promising platform for high-sensitivity measurements.
  • The technique shows potential for searches for new physics, precision collision studies, and quantum spin dynamics.
  • Extended coherence times significantly enhance the capabilities for precision measurements.