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: 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...
Atomic Nuclei: Nuclear Spin State Overview01:03

Atomic Nuclei: Nuclear Spin State Overview

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 one, the...
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,...
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...
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...
The Pauli Exclusion Principle03:06

The Pauli Exclusion Principle

The arrangement of electrons in the orbitals of an atom is called its electron configuration. We describe an electron configuration with a symbol that contains three pieces of information:

You might also read

Related Articles

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

Sort by
Same author

Real-World Outcomes of SIB-Based Concurrent Chemoradiation Therapy for Upper-Third Esophageal Cancer: A Single-Center Retrospective Study in Vietnam.

La Clinica terapeutica·2026
Same author

Comparative study of monoclinic and cubic WO<sub>3</sub> nanoplates on NO<sub>2</sub> gas-sensing properties.

RSC advances·2025
Same author

Multi-environment Genomic Selection in Rice Elite Breeding Lines.

Rice (New York, N.Y.)·2023
Same author

Role of Baseline Albumin-Bilirubin Grade on Predict Overall Survival Among Sorafenib-Treated Patients With Hepatocellular Carcinoma in Vietnam.

Cancer control : journal of the Moffitt Cancer Center·2019
Same author

Epidemiological Characteristics of Advanced Hepatocellular Carcinoma in the Northern Region of Vietnam.

Cancer control : journal of the Moffitt Cancer Center·2019
Same author

Chlorine Gas Sensing Performance of On-Chip Grown ZnO, WO3, and SnO2 Nanowire Sensors.

ACS applied materials & interfaces·2016

Related Experiment Video

Updated: May 30, 2026

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform
05:39

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform

Published on: August 2, 2019

Quantum dynamics of two-spin-qubit systems.

Van Hieu Nguyen1

  • 1Max-Planck Institute for the Physics of Complex Systems, Noethnitzer Strasse 38, D-01187 Dresden, Germany. Institute of Materials Science, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam.

Journal of Physics. Condensed Matter : an Institute of Physics Journal
|August 11, 2011
PubMed
Summary
This summary is machine-generated.

This review details the quantum information transfer mechanism between two spin qubits using exactly solvable models. It explores decoherence and reveals entanglement sudden death and revival phenomena.

Related Experiment Videos

Last Updated: May 30, 2026

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform
05:39

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform

Published on: August 2, 2019

Area of Science:

  • Quantum Information Science
  • Quantum Computing
  • Theoretical Physics

Background:

  • Understanding quantum information transfer is crucial for quantum computing.
  • Spin qubits are promising candidates for quantum information processing.

Purpose of the Study:

  • To present a systematic review of theoretical works on the quantum dynamics of two-spin-qubit systems.
  • To elaborate a physical mechanism for quantum information transfer between two spin qubits.
  • To investigate decoherence effects and entanglement dynamics.

Main Methods:

  • Focus on exactly solvable models of two-spin-qubit systems.
  • Analytical expressions for reduced density matrices to show information dependence.
  • Markovian approximation for decoherence treatment.
  • Exact solutions of rate equations for coupled and uncoupled spin qubits.

Main Results:

  • Demonstrated the physical mechanism of quantum information exchange between spin qubits.
  • Showcased that the mechanism is applicable even for numerically solved systems.
  • Observed entanglement sudden death and revival in uncoupled qubits interacting with environments.
  • Constructed a two-spin-qubit system with an asymptotically decoherence-free subspace.

Conclusions:

  • The presented theoretical framework elucidates quantum information transfer mechanisms in two-spin-qubit systems.
  • The findings are extendable to larger spin-qubit networks and chains.
  • Understanding decoherence and entanglement dynamics is key for robust quantum information processing.