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

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: 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
Protein-protein Interfaces02:04

Protein-protein Interfaces

14.8K
Many proteins form complexes to carry out their functions, making protein-protein interactions (PPIs) essential for an organism's survival. Most PPIs are stabilized by numerous weak noncovalent chemical forces. The physical shape of the interfaces determines the way two proteins interact. Many globular proteins have closely-matching shapes on their surfaces, which form a large number of weak bonds. Additionally, many PPIs occur between two helices or between a surface cleft and a...
14.8K
Protein-Protein Interfaces02:04

Protein-Protein Interfaces

4.5K
4.5K
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
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

You might also read

Related Articles

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

Sort by
Same author

Efficient Quantum Simulation for Translationally Invariant Systems.

Physical review letters·2026
Same author

Three-Carrier Spin Blockade and Coupling in Bilayer Graphene Double Quantum Dots.

Physical review letters·2024
Same author

Diamond spins making waves again.

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

Ultra-narrow inhomogeneous spectral distribution of telecom-wavelength vanadium centres in isotopically-enriched silicon carbide.

Nature communications·2023
Same author

Fingerprints of Qubit Noise in Transient Cavity Transmission.

Physical review letters·2022
Same author

Dynamics of Hole Singlet-Triplet Qubits with Large g-Factor Differences.

Physical review letters·2022
Same journal

Retraction Note: NSD2 targeting reverses plasticity and drug resistance in prostate cancer.

Nature·2026
Same journal

Enhanced B cell priming induces broadly neutralizing HIV-1 apex antibodies.

Nature·2026
Same journal

Vaccination elicits HIV broadly neutralizing antibodies in primates.

Nature·2026
Same journal

Child online safety needs more than social-media bans.

Nature·2026
Same journal

Ebola preparedness must start with ecosystems and before humans show symptoms.

Nature·2026
Same journal

AI tools can speed up thinking, but evidence still comes from the lab bench.

Nature·2026
See all related articles

Related Experiment Video

Updated: Feb 14, 2026

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source
12:19

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source

Published on: April 4, 2017

8.9K

A coherent spin-photon interface in silicon.

X Mi1, M Benito2, S Putz1

  • 1Department of Physics, Princeton University, Princeton, New Jersey 08544, USA.

Nature
|February 15, 2018
PubMed
Summary
This summary is machine-generated.

Researchers achieved strong coupling between silicon electron spins and microwave photons, enabling long-distance quantum connections. This breakthrough facilitates quantum computing by allowing scalable, all-to-all qubit connectivity via photons.

More Related Videos

Measurement of X-ray Beam Coherence along Multiple Directions Using 2-D Checkerboard Phase Grating
10:39

Measurement of X-ray Beam Coherence along Multiple Directions Using 2-D Checkerboard Phase Grating

Published on: October 11, 2016

10.2K
Generation and Coherent Control of Pulsed Quantum Frequency Combs
06:42

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

9.7K

Related Experiment Videos

Last Updated: Feb 14, 2026

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source
12:19

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source

Published on: April 4, 2017

8.9K
Measurement of X-ray Beam Coherence along Multiple Directions Using 2-D Checkerboard Phase Grating
10:39

Measurement of X-ray Beam Coherence along Multiple Directions Using 2-D Checkerboard Phase Grating

Published on: October 11, 2016

10.2K
Generation and Coherent Control of Pulsed Quantum Frequency Combs
06:42

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

9.7K

Area of Science:

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

Background:

  • Silicon quantum dots offer long coherence times and scalability for quantum computing.
  • Current methods like nearest-neighbor coupling limit qubit connectivity.
  • Achieving long-distance spin-spin coupling via photons is crucial for advanced quantum processors.

Purpose of the Study:

  • To demonstrate strong, coherent coupling between single electron spins in silicon and microwave-frequency photons.
  • To overcome the limitations of small magnetic-dipole moments for spin-photon interactions.
  • To enable all-to-all connectivity in spin-based quantum processors.

Main Methods:

  • Utilizing spin-charge hybridization in a magnetic-field gradient to enhance spin-photon interaction.
  • Employing microwave-frequency photons for mediating spin-spin coupling.
  • Implementing coherent control and dispersive readout techniques for single spins.

Main Results:

  • Achieved strong spin-photon coupling rates exceeding 10 megahertz, significantly higher than previous methods.
  • Demonstrated coherent control and dispersive readout of individual electron spins in silicon.
  • Established a viable mechanism for mediating interactions between distant spins.

Conclusions:

  • The demonstrated strong spin-photon coupling provides a direct pathway for entangling single spins using photons.
  • This research paves the way for scalable quantum processors with all-to-all qubit connectivity.
  • Advances in silicon quantum dot technology are accelerated, bringing practical quantum computing closer.