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

1.1K
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...
1.1K
Spin–Spin Coupling: One-Bond Coupling01:17

Spin–Spin Coupling: One-Bond Coupling

1.1K
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,...
1.1K
The de Broglie Wavelength02:32

The de Broglie Wavelength

31.1K
In the macroscopic world, objects that are large enough to be seen by the naked eye follow the rules of classical physics. A billiard ball moving on a table will behave like a particle; it will continue traveling in a straight line unless it collides with another ball, or it is acted on by some other force, such as friction. The ball has a well-defined position and velocity or well-defined momentum, p = mv, which is defined by mass m and velocity v at any given moment. This is the typical...
31.1K
The Quantum-Mechanical Model of an Atom02:45

The Quantum-Mechanical Model of an Atom

54.0K
Shortly after de Broglie published his ideas that the electron in a hydrogen atom could be better thought of as being a circular standing wave instead of a particle moving in quantized circular orbits, Erwin Schrödinger extended de Broglie’s work by deriving what is now known as the Schrödinger equation. When Schrödinger applied his equation to hydrogen-like atoms, he was able to reproduce Bohr’s expression for the energy and, thus, the Rydberg formula governing hydrogen spectra.
54.0K
Spin–Spin Coupling: Two-Bond Coupling (Geminal Coupling)01:20

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

1.2K
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...
1.2K
¹H NMR: Interpreting Distorted and Overlapping Signals01:02

¹H NMR: Interpreting Distorted and Overlapping Signals

1.2K
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...
1.2K

You might also read

Related Articles

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

Sort by
Same author

Mindful parenting and preschoolers' screen dependency behavior: the mediating role of parent-child relationship and the moderating role of effortful control.

Frontiers in psychology·2026
Same author

Putative buffering roles of two-way social support and psychological resilience in the association between nurse-patient conflict and situational emotional response: a cross-sectional correlational study among Chinese nursing interns.

BMC nursing·2026
Same author

Nurses' perceived trauma-informed climate and voice behavior for nursing care improvement: a moderated mediation model of psychological empowerment and cultural humility.

BMC nursing·2026
Same author

Steering the digital transformation of service-oriented organizations by job crafting and innovative work behavior: employee-driven adaptability.

Frontiers in psychology·2026
Same author

Effectiveness of Mobile Health Technology-Based Interventions on Foot Care Behaviors, Knowledge and Beliefs in Patients With Diabetes: A Systematic Review and Meta-Analysis.

Nursing & health sciences·2026
Same author

Social Isolation and Its Influencing Factors in Maintenance Haemodialysis Patients: A Latent Profile Analysis.

Journal of advanced nursing·2025
Same journal

Orientation dependence of the magnetic phase diagram of Yb<sub>2</sub>Ti<sub>2</sub>O<sub>7</sub>.

Physical review. B·2026
Same journal

Magnetic phase transitions and spin density distribution in the molecular multiferroic system GaV<sub>4</sub>S<sub>8</sub>.

Physical review. B·2026
Same journal

Correcting Delocalization Error in Materials with Localized Orbitals and Linear-Response Screening.

Physical review. B·2026
Same journal

Error Mitigation Thresholds in Noisy Random Quantum Circuits.

Physical review. B·2026
Same journal

Electric field-induced Kerr rotation on metallic surfaces.

Physical review. B·2026
Same journal

Atomistic tight-binding Hartree-Fock calculations of multielectron configurations in P-doped silicon devices: Wavefunction reshaping.

Physical review. B·2026
See all related articles

Related Experiment Video

Updated: Nov 2, 2025

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

2.4K

Real-time dynamics of string breaking in quantum spin chains.

Roberto Verdel1, Fangli Liu2,3, Seth Whitsitt2,3

  • 1Max-Planck-Institut für Physik komplexer Systeme, Nöthnitzer Straße 38, 01187-Dresden, Germany.

Physical Review. B
|June 16, 2021
PubMed
Summary
This summary is machine-generated.

String breaking in quantum Ising chains is a two-stage process. Domain walls, confined by fields or interactions, exhibit delayed string breaking, with timescales sensitive to initial separation.

More Related Videos

All-electronic Nanosecond-resolved Scanning Tunneling Microscopy: Facilitating the Investigation of Single Dopant Charge Dynamics
11:33

All-electronic Nanosecond-resolved Scanning Tunneling Microscopy: Facilitating the Investigation of Single Dopant Charge Dynamics

Published on: January 19, 2018

10.0K
Single-Molecule Dwell-Time Analysis of Restriction Endonuclease-Mediated DNA Cleavage
09:53

Single-Molecule Dwell-Time Analysis of Restriction Endonuclease-Mediated DNA Cleavage

Published on: February 7, 2021

2.1K

Related Experiment Videos

Last Updated: Nov 2, 2025

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

2.4K
All-electronic Nanosecond-resolved Scanning Tunneling Microscopy: Facilitating the Investigation of Single Dopant Charge Dynamics
11:33

All-electronic Nanosecond-resolved Scanning Tunneling Microscopy: Facilitating the Investigation of Single Dopant Charge Dynamics

Published on: January 19, 2018

10.0K
Single-Molecule Dwell-Time Analysis of Restriction Endonuclease-Mediated DNA Cleavage
09:53

Single-Molecule Dwell-Time Analysis of Restriction Endonuclease-Mediated DNA Cleavage

Published on: February 7, 2021

2.1K

Area of Science:

  • Condensed Matter Physics
  • Quantum Information Science

Background:

  • String breaking is a key confinement mechanism in particle physics.
  • Quantum Ising chains exhibit phenomena analogous to confinement.

Purpose of the Study:

  • To investigate string breaking in quantum Ising chains.
  • To analyze the dynamics of confined domain walls.

Main Methods:

  • Developed an effective description for string motion.
  • Studied the impact of symmetry-breaking fields and long-range interactions.
  • Analyzed timescale dependence on domain wall separation.

Main Results:

  • String breaking occurs in two distinct stages: initial stability followed by delayed breaking.
  • The connecting string exhibits constrained, dynamical motion.
  • Timescales for string breaking are highly sensitive to initial domain wall separation.

Conclusions:

  • String breaking in quantum Ising chains is a complex, multi-stage process.
  • Results generalize to one-dimensional confining gauge theories.
  • Potential for experimental verification in quantum simulators (Rydberg atoms, trapped ions).