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

Atomic Nuclei: Nuclear Spin01:08

Atomic Nuclei: Nuclear Spin

2.2K
All atomic particles possess an intrinsic angular momentum, or 'spin'. Electrons, protons, and neutrons each have a spin value of ½, although protons and neutrons in nuclei may have higher half-integer spins owing to energetic factors.
Atomic nuclei have a net nuclear spin, , which can have an integer or half-integer value. In atomic nuclei, the spins of protons are paired against each other but not with neutrons, and vice versa. Consequently, an even number of protons does not...
2.2K
Atomic Nuclei: Nuclear Spin State Overview01:03

Atomic Nuclei: Nuclear Spin State Overview

1.1K
NMR-active nuclei have energy levels called 'spin states' that are associated with the orientations of their nuclear magnetic moments. In the absence of a magnetic field, the nuclear magnetic moments are randomly oriented, and the spin states are degenerate. When an external magnetic field is applied, the spin states have only 2 + 1 orientations available to them. A proton with = ½ has two available orientations. Similarly, for a quadrupolar nucleus with a nuclear spin value of...
1.1K
¹H NMR: Interpreting Distorted and Overlapping Signals01:02

¹H NMR: Interpreting Distorted and Overlapping Signals

1.1K
Spin systems where the difference in chemical shifts of the coupled nuclei is greater than ten times J are called first-order spin systems. These nuclei are weakly coupled, and their chemical shifts and coupling constant can generally be estimated from the well-separated signals in the spectrum.
As Δν decreases and the signals move closer, the doublets appear increasingly distorted. The intensities of the inner lines increase at the cost of those of the outer lines as the signals are...
1.1K
Spin–Spin Coupling Constant: Overview01:08

Spin–Spin Coupling Constant: Overview

976
In bromoethane, the three methyl protons are coupled to the two methylene protons that are three bonds away. In accordance with the n+1 rule, the signal from the methyl protons is split into three peaks with 1:2:1 relative intensities. The methylene protons appear as a quartet, with the relative intensities of 1:3:3:1.
Qualitatively, any spin plus-half nucleus polarizes the spins of its electrons to the minus-half state. Consequently, the paired electron in the hydrogen–carbon bond must...
976
Spin–Spin Coupling: Two-Bond Coupling (Geminal Coupling)01:20

Spin–Spin Coupling: Two-Bond Coupling (Geminal Coupling)

1.1K
Two NMR-active nuclei bonded to a central atom can be involved in geminal or two-bond coupling. Geminal coupling is commonly seen between diastereotopic protons in chiral molecules and unsymmetrical alkenes, among others.
The central atom need not be NMR-active because its electrons are affected by the electron polarization of the spin-active atoms. However, spin information is transmitted less effectively than in one-bond coupling, and 2J values are usually weaker than 1J values. The energy of...
1.1K
Atomic Nuclei: Nuclear Spin State Population Distribution01:14

Atomic Nuclei: Nuclear Spin State Population Distribution

1.1K
Near absolute zero temperatures, in the presence of a magnetic field, the majority of nuclei prefer the lower energy spin-up state to the higher energy spin-down state. As temperatures increase, the energy from thermal collisions distributes the spins more equally between the two states. The Boltzmann distribution equation gives the ratio of the number of spins predicted in the spin −½ (N−) and spin +½ (N+) states.
1.1K

You might also read

Related Articles

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

Sort by
Same journal

Profile and Dynamics of Antiferromagnetic Domain Walls under Spin-Orbit Torque.

Physical review letters·2026
Same journal

Observation of Linear Scaling of Superconductivity with Crystal Orientation at a-LaAlO_{3}/KTaO_{3} Interfaces.

Physical review letters·2026
Same journal

Nonperturbative S-Matrix Renormalization.

Physical review letters·2026
Same journal

Block-Type Antiferromagnetism in Single Chain Quasi-One-Dimensional K_{3}Fe_{2}Se_{4}.

Physical review letters·2026
Same journal

Search for Dark Matter Induced Airglow in Planetary Atmospheres.

Physical review letters·2026
Same journal

Revisiting the Charge-Density-Wave Superlattice of 1T-TiSe_{2}.

Physical review letters·2026

Related Experiment Video

Updated: Aug 8, 2025

High-Temperature and High-Pressure In situ Magic Angle Spinning Nuclear Magnetic Resonance Spectroscopy
08:55

High-Temperature and High-Pressure In situ Magic Angle Spinning Nuclear Magnetic Resonance Spectroscopy

Published on: October 9, 2020

5.7K

Classical Double Copy and Higher-Spin Fields.

V E Didenko1, N K Dosmanbetov2

  • 1I.E. Tamm Department of Theoretical Physics, Lebedev Physical Institute, Leninsky Prospect 53, 119991, Moscow, Russia.

Physical Review Letters
|March 3, 2023
PubMed
Summary

The Kerr-Schild double copy framework naturally extends to higher-spin gauge fields on anti-de Sitter and de Sitter spacetimes. This reveals a spectrum organized by higher-spin symmetry, mirroring properties of Kerr black holes.

More Related Videos

Capturing Chromosome Conformation Across Length Scales
10:15

Capturing Chromosome Conformation Across Length Scales

Published on: January 20, 2023

3.5K
Spin Saturation Transfer Difference NMR SSTD NMR: A New Tool to Obtain Kinetic Parameters of Chemical Exchange Processes
11:44

Spin Saturation Transfer Difference NMR SSTD NMR: A New Tool to Obtain Kinetic Parameters of Chemical Exchange Processes

Published on: November 12, 2016

18.0K

Related Experiment Videos

Last Updated: Aug 8, 2025

High-Temperature and High-Pressure In situ Magic Angle Spinning Nuclear Magnetic Resonance Spectroscopy
08:55

High-Temperature and High-Pressure In situ Magic Angle Spinning Nuclear Magnetic Resonance Spectroscopy

Published on: October 9, 2020

5.7K
Capturing Chromosome Conformation Across Length Scales
10:15

Capturing Chromosome Conformation Across Length Scales

Published on: January 20, 2023

3.5K
Spin Saturation Transfer Difference NMR SSTD NMR: A New Tool to Obtain Kinetic Parameters of Chemical Exchange Processes
11:44

Spin Saturation Transfer Difference NMR SSTD NMR: A New Tool to Obtain Kinetic Parameters of Chemical Exchange Processes

Published on: November 12, 2016

18.0K

Area of Science:

  • Theoretical physics
  • High-energy physics
  • String theory

Background:

  • The Kerr-Schild double copy provides a powerful method for relating gauge theories to gravity.
  • Extending this framework to higher spins and curved spacetimes is a significant challenge.
  • Understanding the properties of gauge fields on (A)dS spacetimes is crucial for quantum gravity.

Purpose of the Study:

  • To investigate the applicability of the Kerr-Schild double copy to higher-spin gauge fields.
  • To explore the spectrum of these fields on (anti-)de Sitter spacetimes.
  • To uncover connections between higher-spin symmetries and black hole physics.

Main Methods:

  • Generalization of the Kerr-Schild double copy to arbitrary spin.
  • Analysis of free symmetric gauge fields propagating on (A)dS spacetimes in any dimension.
  • Examination of the mass spectrum and its relation to gauge symmetry and higher-spin symmetry.

Main Results:

  • The Kerr-Schild double copy naturally extends to all free symmetric gauge fields on (A)dS spacetimes.
  • A multicopy structure, including zeroth, single, and double copies, emerges for higher spins.
  • A fine-tuning of mass terms is observed, organizing the spectrum by higher-spin symmetry.

Conclusions:

  • The Kerr-Schild double copy framework is robust and applicable to higher-spin gauge theories on curved spacetimes.
  • The observed spectrum and fine-tuning suggest a deep connection between higher-spin symmetries and black hole properties.
  • This work provides new insights into the structure of gravity and gauge theories in diverse dimensions and spacetimes.