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 Constant: Overview01:08

Spin–Spin Coupling Constant: Overview

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 have a...
Double Resonance Techniques: Overview01:12

Double Resonance Techniques: Overview

Double resonance techniques in Nuclear Magnetic Resonance (NMR) spectroscopy involve the simultaneous application of two different frequencies or radiofrequency pulses to manipulate and observe two distinct nuclear spins. One important application of double resonance is spin decoupling, which selectively suppresses coupling with one type of nucleus while observing the NMR signal from another nucleus, simplifying the spectrum and enhancing resolution.
Spin decoupling is usually achieved by...
Spin–Spin Coupling: Two-Bond Coupling (Geminal Coupling)01:20

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

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...
¹H NMR: Interpreting Distorted and Overlapping Signals01:02

¹H NMR: Interpreting Distorted and Overlapping Signals

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 slanted or...
Valence Bond Theory02:42

Valence Bond Theory

Coordination compounds and complexes exhibit different colors, geometries, and magnetic behavior, depending on the metal atom/ion and ligands from which they are composed. In an attempt to explain the bonding and structure of coordination complexes, Linus Pauling proposed the valence bond theory, or VBT, using the concepts of hybridization and the overlapping of the atomic orbitals. According to VBT, the central metal atom or ion (Lewis acid) hybridizes to provide empty orbitals of suitable...
Spin–Spin Coupling: One-Bond Coupling01:17

Spin–Spin Coupling: One-Bond Coupling

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,...

You might also read

Related Articles

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

Sort by
Same author

Efficacy of different optical zone design with different myopia control for corneal refractive therapy (CRT): a one-year prospective cohort study.

BMC ophthalmology·2026
Same author

Temporal super-cell engineering and acoustic amplification in dispersive phononic time crystals.

Nature communications·2026
Same author

Exercise rejuvenates bone marrow mesenchymal stem cells associated with the inhibition of inflammatory factors and senescence-related factors.

Biochemistry and biophysics reports·2026
Same author

Genome mining guided discovery of new pentangular polyketides from the marine rare actinomycete <i>Actinoalloteichus hymeniacidonis</i> DSM 45092.

Journal of Asian natural products research·2026
Same author

The Development and Characterization of a Nervonic-Acid-Rich Structured Lipid.

Molecules (Basel, Switzerland)·2026
Same author

Cardiac Myxoma in the right ventricle.

The international journal of cardiovascular imaging·2026

Related Experiment Video

Updated: May 8, 2026

Nanofabrication of Gate-defined GaAs/AlGaAs Lateral Quantum Dots
15:47

Nanofabrication of Gate-defined GaAs/AlGaAs Lateral Quantum Dots

Published on: November 1, 2013

Precision control of charge coherence in parallel double dot systems through spin-orbit interaction.

Jinshuang Jin1, Matisse Wei-Yuan Tu, Nien-En Wang

  • 1Department of Physics, Hangzhou Normal University, Hangzhou 310036, China. jsjin@hznu.edu.cn

The Journal of Chemical Physics
|August 17, 2013
PubMed
Summary

Researchers explored quantum dots and spin-orbit interaction to maintain coherence in electronic systems. They found a way to control this coherence, potentially leading to more stable quantum computations.

More Related Videos

Silicon Metal-oxide-semiconductor Quantum Dots for Single-electron Pumping
14:58

Silicon Metal-oxide-semiconductor Quantum Dots for Single-electron Pumping

Published on: June 3, 2015

Experimental Methods for Spin- and Angle-Resolved Photoemission Spectroscopy Combined with Polarization-Variable Laser
09:00

Experimental Methods for Spin- and Angle-Resolved Photoemission Spectroscopy Combined with Polarization-Variable Laser

Published on: June 28, 2018

Related Experiment Videos

Last Updated: May 8, 2026

Nanofabrication of Gate-defined GaAs/AlGaAs Lateral Quantum Dots
15:47

Nanofabrication of Gate-defined GaAs/AlGaAs Lateral Quantum Dots

Published on: November 1, 2013

Silicon Metal-oxide-semiconductor Quantum Dots for Single-electron Pumping
14:58

Silicon Metal-oxide-semiconductor Quantum Dots for Single-electron Pumping

Published on: June 3, 2015

Experimental Methods for Spin- and Angle-Resolved Photoemission Spectroscopy Combined with Polarization-Variable Laser
09:00

Experimental Methods for Spin- and Angle-Resolved Photoemission Spectroscopy Combined with Polarization-Variable Laser

Published on: June 28, 2018

Area of Science:

  • Quantum physics
  • Condensed matter physics
  • Quantum information science

Background:

  • Open quantum systems often suffer from decoherence, limiting their use in quantum technologies.
  • Quantum dots offer a scalable platform for studying quantum phenomena.
  • Spin-orbit interaction is a relativistic effect that can influence electron behavior.

Purpose of the Study:

  • To investigate the coherent dynamics of a two-charge-state system in parallel quantum dots.
  • To explore the role of spin-orbit interaction in creating a decoherence-free subspace.
  • To demonstrate precise manipulation of charge state coherence via spin-orbit coupling.

Main Methods:

  • Exact quantum master equation solution for open electronic systems.
  • Modeling of two parallel quantum dots with a single polarized electron on each dot.
  • Analysis of spin-orbit interaction effects on coherent dynamics.

Main Results:

  • The double quantum dot system can be maintained in a dynamically decoherence-free subspace.
  • Spin-orbit coupling enables precise control over the coherence between charge states.
  • The study explored the influence of temperature, lead bandwidth, and energy deviations on coherence manipulation.

Conclusions:

  • Dynamically decoherence-free subspaces are achievable in double quantum dot systems.
  • Spin-orbit interaction is a viable tool for controlling quantum coherence in these systems.
  • The findings have implications for developing robust quantum information processing technologies.