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)

1.3K
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...
1.3K
The Pauli Exclusion Principle03:06

The Pauli Exclusion Principle

57.1K
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:
57.1K
Hybridization of Atomic Orbitals I03:24

Hybridization of Atomic Orbitals I

57.3K
The mathematical expression known as the wave function, ψ, contains information about each orbital and the wavelike properties of electrons in an isolated atom. When atoms are bound together in a molecule, the wave functions combine to produce new mathematical descriptions that have different shapes. This process of combining the wave functions for atomic orbitals is called hybridization and is mathematically accomplished by the linear combination of atomic orbitals. The new orbitals that...
57.3K
¹H NMR: Complex Splitting01:13

¹H NMR: Complex Splitting

1.5K
A proton M that is coupled to a proton X results in doublet signals for M. However, NMR-active nuclei can be simultaneously coupled to more than one nonequivalent nucleus. When M is coupled to a second proton A, such as in styrene oxide, each peak in the doublet is split into another doublet.
Splitting diagrams or splitting tree diagrams are routinely used to depict such complex couplings. While drawing splitting diagrams, the splitting with the larger coupling constant is usually applied...
1.5K
Network Covalent Solids02:18

Network Covalent Solids

15.3K
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...
15.3K
Spin–Spin Coupling: One-Bond Coupling01:17

Spin–Spin Coupling: One-Bond Coupling

1.2K
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,...
1.2K

You might also read

Related Articles

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

Sort by
Same author

Ultrasound-guided in-plane and Out-of-plane Techniques Versus Landmark Technique for Internal Jugular Vein Catheterization in Adult Cardiac Surgery Patients.

Kathmandu University medical journal (KUMJ)·2026
Same author

"Intranasal clozapine sol-gel formulation induces an antipsychotic effect at a fraction of a comparable oral therapeutic dose".

Translational psychiatry·2026
Same author

Guillain-Barré Syndrome Following Tetanus Toxoid Vaccination:A Rare Case Report From A Tertiary Care Centre.

Kathmandu University medical journal (KUMJ)·2026
Same author

Dynamic trends of dengue fever serotypes in northern India: Exploring clinical manifestations, serotype dissemination, and the influence of mixed infections.

Tropical biomedicine·2025
Same author

First Measurement of Deeply Virtual Compton Scattering on the Neutron with Detection of the Active Neutron.

Physical review letters·2024
Same author

Role of Intraoperative Cholangiogram in Major Liver Resection and Complex Bilio-enteric Bypass Surgery.

Kathmandu University medical journal (KUMJ)·2024
Same journal

Erratum: Bacterial Turbulence at Compressible Fluid Interfaces [Phys. Rev. Lett. 136, 138301 (2026)].

Physical review letters·2026
Same journal

Unveiling Light-Quark Yukawa Flavor Structure via Dihadron Fragmentation at Lepton Colliders.

Physical review letters·2026
Same journal

Adaptable Route to Fast Coherent State Transport via Bang-Bang-Bang Protocols.

Physical review letters·2026
Same journal

Topological Transition and Emergence of Elasticity of Dislocation in Skyrmion Lattice: Beyond Kittel's Magnetic-Polar Analogy.

Physical review letters·2026
Same journal

Pound-Drever-Hall Method for Superconducting-Qubit Readout.

Physical review letters·2026
Same journal

Coupling a ^{73}Ge Nuclear Spin to an Electrostatically Defined Quantum Dot in Silicon.

Physical review letters·2026
See all related articles

Related Experiment Video

Updated: Nov 8, 2025

Optimized Fabrication Procedure for High-Quality Graphene-based Moiré Superlattice Devices
11:24

Optimized Fabrication Procedure for High-Quality Graphene-based Moiré Superlattice Devices

Published on: July 11, 2025

10.4K

Ballistic Graphene Cooper Pair Splitter.

P Pandey1, R Danneau2, D Beckmann2

  • 1Institute of Nanotechnology, Karlsruhe Institute of Technology, Karlsruhe D-76021, Germany.

Physical Review Letters
|April 23, 2021
PubMed
Summary
This summary is machine-generated.

Researchers experimentally demonstrated Cooper pair splitting using ballistic graphene multiterminal junctions. This breakthrough in quantum electronics paves the way for novel entangled state detection experiments.

More Related Videos

Fabrication of Gate-tunable Graphene Devices for Scanning Tunneling Microscopy Studies with Coulomb Impurities
11:42

Fabrication of Gate-tunable Graphene Devices for Scanning Tunneling Microscopy Studies with Coulomb Impurities

Published on: July 24, 2015

15.7K
Simultaneous Synthesis of Single-walled Carbon Nanotubes and Graphene in a Magnetically-enhanced Arc Plasma
09:48

Simultaneous Synthesis of Single-walled Carbon Nanotubes and Graphene in a Magnetically-enhanced Arc Plasma

Published on: February 2, 2012

15.5K

Related Experiment Videos

Last Updated: Nov 8, 2025

Optimized Fabrication Procedure for High-Quality Graphene-based Moiré Superlattice Devices
11:24

Optimized Fabrication Procedure for High-Quality Graphene-based Moiré Superlattice Devices

Published on: July 11, 2025

10.4K
Fabrication of Gate-tunable Graphene Devices for Scanning Tunneling Microscopy Studies with Coulomb Impurities
11:42

Fabrication of Gate-tunable Graphene Devices for Scanning Tunneling Microscopy Studies with Coulomb Impurities

Published on: July 24, 2015

15.7K
Simultaneous Synthesis of Single-walled Carbon Nanotubes and Graphene in a Magnetically-enhanced Arc Plasma
09:48

Simultaneous Synthesis of Single-walled Carbon Nanotubes and Graphene in a Magnetically-enhanced Arc Plasma

Published on: February 2, 2012

15.5K

Area of Science:

  • Quantum electronics
  • Condensed matter physics
  • Materials science

Background:

  • Cooper pair splitting is a fundamental quantum phenomenon.
  • Graphene's unique electronic properties make it a promising material for quantum devices.
  • Ballistic transport in nanostructures is crucial for preserving quantum coherence.

Purpose of the Study:

  • To experimentally realize and investigate Cooper pair splitting in graphene-based multiterminal junctions.
  • To explore the potential of graphene as a platform for quantum information processing.

Main Methods:

  • Fabrication of superconductor-graphene-superconductor (SGS) and normal metal-graphene-normal metal (NGN) junctions.
  • Utilizing ballistic transport in graphene multiterminal junctions.
  • Performing local and nonlocal electronic transport measurements.

Main Results:

  • Clear signatures of Cooper pair splitting were observed in both SGS and NGN geometries.
  • Experimental data were accurately described by a beam splitter model.
  • Demonstrated the feasibility of using graphene for Cooper pair splitting.

Conclusions:

  • Ballistic graphene multiterminal junctions are effective for Cooper pair splitting.
  • These findings enable the design of new experiments for entangled state detection.
  • Highlights the potential of graphene in quantum technologies.