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

The Quantum-Mechanical Model of an Atom02:45

The Quantum-Mechanical Model of an Atom

42.0K
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.
42.0K
Atomic Nuclei: Nuclear Spin State Overview01:03

Atomic Nuclei: Nuclear Spin State Overview

888
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...
888
Network Covalent Solids02:18

Network Covalent Solids

13.4K
Network covalent solids contain a three-dimensional network of covalently bonded atoms as found in the crystal structures of nonmetals like diamond, graphite, silicon, and some covalent compounds, such as silicon dioxide (sand) and silicon carbide (carborundum, the abrasive on sandpaper). Many minerals have networks of covalent bonds.
To break or to melt a covalent network solid, covalent bonds must be broken. Because covalent bonds are relatively strong, covalent network solids are typically...
13.4K
Atomic Nuclei: Nuclear Relaxation Processes01:23

Atomic Nuclei: Nuclear Relaxation Processes

632
In the absence of an external magnetic field, nuclear spin states are degenerate and randomly oriented. When a magnetic field is applied, the spins begin to precess and orient themselves along (lower energy) or against (higher energy) the direction of the field. At equilibrium, a slight excess population of spins exists in the lower energy state. Because the direction of the magnetic field is fixed as the z-axis,  the precessing magnetic moments are randomly oriented around the z-axis.
632
Hybridization of Atomic Orbitals II03:35

Hybridization of Atomic Orbitals II

31.8K
sp3d and sp3d 2 Hybridization
31.8K
Atomic Nuclei: Magnetic Resonance01:05

Atomic Nuclei: Magnetic Resonance

636
The number of nuclear spins aligned in the lower energy state is slightly greater than those in the higher energy state. In the presence of an external magnetic field, as the spins precess at the Larmor frequency, the excess population results in a net magnetization oriented along the z axis. When a pulse or a short burst of radio waves at the Larmor frequency is applied along the x axis, the coupling of frequencies causes resonance and flips the nuclear spins of the excess population from the...
636

You might also read

Related Articles

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

Sort by
Same author

Unconditionally teleported quantum gates between remote solid-state qubit registers.

Nature communications·2026
Same author

Long-distance quantum link generates entanglement faster than it is lost.

Nature·2026
Same author

SUPER and femtosecond spin-conserving coherent excitation of a tin-vacancy color center in diamond.

Nature communications·2026
Same author

Challenges and opportunities for quantum information hardware.

Science (New York, N.Y.)·2025
Same author

Spin-photon correlations from a Purcell-enhanced diamond nitrogen-vacancy center coupled to an open microcavity.

Nature communications·2025
Same author

Fast and compact four-quadrant CEP detection with <i>f</i>-2<i>f</i> polarization interferometry.

Optics express·2025

Related Experiment Video

Updated: Jun 9, 2025

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

9.5K

Metropolitan-scale heralded entanglement of solid-state qubits.

Arian J Stolk1, Kian L van der Enden1, Marie-Christine Slater1

  • 1QuTech and Kavli Institute of Nanoscience, Delft University of Technology, 2628 CJ, Delft, Netherlands.

Science Advances
|October 30, 2024
PubMed
Summary

Researchers achieved heralded entanglement between quantum network nodes 10 km apart, a crucial step for building a quantum internet. This breakthrough uses diamond spin qubits and advanced techniques to overcome fiber loss challenges.

More Related Videos

Gradient Echo Quantum Memory in Warm Atomic Vapor
10:00

Gradient Echo Quantum Memory in Warm Atomic Vapor

Published on: November 11, 2013

12.8K
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

16.2K

Related Experiment Videos

Last Updated: Jun 9, 2025

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

9.5K
Gradient Echo Quantum Memory in Warm Atomic Vapor
10:00

Gradient Echo Quantum Memory in Warm Atomic Vapor

Published on: November 11, 2013

12.8K
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

16.2K

Area of Science:

  • Quantum networking
  • Quantum communication
  • Quantum information science

Background:

  • Connecting quantum processors over metropolitan distances is a significant hurdle for quantum internet development.
  • Diamond spin qubits are promising candidates for quantum network nodes due to their long coherence times.

Purpose of the Study:

  • To demonstrate heralded entanglement between two independently operated quantum network nodes separated by 10 kilometers.
  • To establish a scalable and extensible architecture for metropolitan-scale quantum networks.

Main Methods:

  • Utilized diamond spin qubits as quantum network nodes.
  • Employed quantum frequency conversion to shift qubit-native photons to the telecom L-band, minimizing fiber loss.
  • Implemented a phase-stabilized architecture and a loss-resilient single-click entangling protocol.
  • Integrated real-time feedback logic with full heralding capabilities.

Main Results:

  • Successfully achieved heralded entanglement between quantum nodes 10 km apart.
  • Demonstrated the delivery of a predefined entangled state irrespective of heralding detection patterns.
  • Showcased the compatibility of the architecture with different qubit systems.

Conclusions:

  • The developed architecture provides a generic platform for exploring metropolitan-scale quantum networks.
  • This work addresses key scaling challenges in quantum internet technology.
  • The approach minimizes photon loss and enhances the reliability of entanglement distribution.