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

Spin–Spin Coupling: One-Bond Coupling01:17

Spin–Spin Coupling: One-Bond Coupling

1.5K
Coupling interactions are strongest between NMR-active nuclei bonded to each other, where spin information can be transmitted directly through the pair of bonding electrons. While nuclei polarize their electrons to the opposite spins, the bonding electron pair has opposite spins. Configurations with antiparallel nuclear spins are expected to be lower in energy. When coupling makes antiparallel states more favorable, J is considered to have a positive value. The one-bond coupling constant, 1J,...
1.5K
Spin–Spin Coupling: Two-Bond Coupling (Geminal Coupling)01:20

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

1.7K
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...
1.7K
Spin–Spin Coupling: Three-Bond Coupling (Vicinal Coupling)01:22

Spin–Spin Coupling: Three-Bond Coupling (Vicinal Coupling)

1.5K
Vicinal or three-bond coupling is commonly observed between protons attached to adjacent carbons. Here, nuclear spin information is primarily transferred via electron spin interactions between adjacent C‑H bond orbitals. This generally favors the antiparallel arrangement of spins, so 3J values are usually positive.
The extent of coupling depends on the C‑C bond length, the two H‑C‑C angles, any electron-withdrawing substituents, and the dihedral angle between the involved orbitals. The...
1.5K
NMR Spectroscopy: Spin–Spin Coupling01:08

NMR Spectroscopy: Spin–Spin Coupling

3.3K
The spin state of an NMR-active nucleus can have a slight effect on its immediate electronic environment. This effect propagates through the intervening bonds and affects the electronic environments of NMR-active nuclei up to three bonds away; occasionally, even farther. This phenomenon is called spin–spin coupling or J-coupling. Coupling interactions are mutual and result in small changes in the absorption frequencies of both nuclei involved. While nuclei of the same element are involved...
3.3K
Spin–Spin Coupling Constant: Overview01:08

Spin–Spin Coupling Constant: Overview

1.5K
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...
1.5K
Atomic Nuclei: Nuclear Spin01:08

Atomic Nuclei: Nuclear Spin

5.2K
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 contribute to...
5.2K

You might also read

Related Articles

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

Sort by
Same author

Lifetime-Limited and Tunable Emission from Single Charge-Stabilized Nickel Vacancy Centers in Diamond.

Physical review letters·2025
Same author

An operating system for executing applications on quantum network nodes.

Nature·2025
Same author

Check-probe spectroscopy of lifetime-limited emitters in bulk-grown silicon carbide.

NPJ quantum information·2025
Same author

Mapping a 50-spin-qubit network through correlated sensing.

Nature communications·2024
Same author

Fault-tolerant operation of a logical qubit in a diamond quantum processor.

Nature·2022
Same author

Many-body-localized discrete time crystal with a programmable spin-based quantum simulator.

Science (New York, N.Y.)·2021

Related Experiment Video

Updated: Feb 8, 2026

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

6.1K

One-second coherence for a single electron spin coupled to a multi-qubit nuclear-spin environment.

M H Abobeih1,2, J Cramer1,2, M A Bakker1,2

  • 1QuTech, Delft University of Technology, PO Box 5046, 2600 GA, Delft, The Netherlands.

Nature Communications
|July 1, 2018
PubMed
Summary

Researchers achieved over a second of coherence time for a single nitrogen-vacancy electron spin. This breakthrough in quantum sensing utilizes tailored decoupling sequences for complex nuclear spin environments, enabling robust multi-qubit registers.

More Related Videos

Electron Spin Resonance Micro-imaging of Live Species for Oxygen Mapping
09:40

Electron Spin Resonance Micro-imaging of Live Species for Oxygen Mapping

Published on: August 26, 2010

22.8K
Study of Protein Dynamics via Neutron Spin Echo Spectroscopy
08:03

Study of Protein Dynamics via Neutron Spin Echo Spectroscopy

Published on: April 13, 2022

2.6K

Related Experiment Videos

Last Updated: Feb 8, 2026

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

6.1K
Electron Spin Resonance Micro-imaging of Live Species for Oxygen Mapping
09:40

Electron Spin Resonance Micro-imaging of Live Species for Oxygen Mapping

Published on: August 26, 2010

22.8K
Study of Protein Dynamics via Neutron Spin Echo Spectroscopy
08:03

Study of Protein Dynamics via Neutron Spin Echo Spectroscopy

Published on: April 13, 2022

2.6K

Area of Science:

  • Quantum Information Science
  • Solid-State Physics
  • Quantum Sensing

Background:

  • Single electron spins coupled to nuclear spins are crucial for developing multi-qubit registers for quantum sensing and networks.
  • Effective control over these systems relies on the ability to selectively couple and decouple electron spins from their nuclear spin environment.

Purpose of the Study:

  • To achieve a coherence time exceeding one second for a single nitrogen-vacancy (NV) electron spin.
  • To demonstrate selective control over electron spins within a complex nuclear spin environment for quantum applications.

Main Methods:

  • Utilized the NV electron spin to probe its surrounding nuclear spin environment, identifying seven individual and six coupled carbon-13 spins.
  • Developed advanced initialization, control, and readout techniques for the carbon-13 nuclear spin pairs to map their atomic structure.
  • Implemented tailored decoupling sequences based on the characterized nuclear spin environment to minimize unwanted interactions.

Main Results:

  • Achieved a coherence time exceeding one second for a single NV electron spin.
  • Successfully mapped the atomic structure of the surrounding carbon-13 nuclear spin environment.
  • Demonstrated the storage of quantum states in the electron spin for over a second.

Conclusions:

  • The study provides a proof-of-principle for quantum sensing of complex multi-spin systems.
  • The achieved long coherence times open opportunities for creating multi-qubit quantum registers with enhanced stability.
  • Precise characterization and control of the nuclear spin environment are key to advancing quantum technologies.