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 de Broglie Wavelength02:32

The de Broglie Wavelength

26.0K
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...
26.0K
¹H NMR: Complex Splitting01:13

¹H NMR: Complex Splitting

1.3K
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...
1.3K
Interaction of EM Radiation with Matter: Spectroscopy01:12

Interaction of EM Radiation with Matter: Spectroscopy

1.8K
Electromagnetic (EM) radiation can be considered an oscillating electric and magnetic field propagating through a medium that can interact with matter in its path. The electric field in the radiation can interact with electrical charges in the atoms or molecules in the matter. On the other hand, the magnetic field can interact with the magnetic field in the atomic nucleus. The study of the interaction between electromagnetic radiation and matter is termed spectroscopy. Spectroscopy is the study...
1.8K
Thomson's e/m Experiment01:19

Thomson's e/m Experiment

3.9K
In a beam of charged particles created by a heated cathode, the particles move at different speeds. However, many applications need a beam with uniform particle speeds. An arrangement known as a velocity selector uses electric and magnetic fields to pick particles with a particular speed from the beam.
A particle with charge q, speed v, and mass m enters an area from the top, where the magnetic and electric fields are perpendicular both to the particle's motion and to one another. The...
3.9K
Interpreting ¹H NMR Signal Splitting: The (n + 1) Rule01:10

Interpreting ¹H NMR Signal Splitting: The (n + 1) Rule

1.4K
In the AX proton spin system, proton A can sense the two spin states of a coupled proton X, resulting in a doublet NMR signal with two peaks of equal (1:1) intensity. When proton A is coupled to two equivalent protons (AX2 spin system), the spin states of each X can be aligned with or against the external field, creating three possible scenarios. This results in a 1:2:1  triplet signal, where the central peak corresponds to the chemical shift of A and is twice as large or intense as the...
1.4K
Electron Behavior00:54

Electron Behavior

99.3K
Overview
Electrons are negatively charged subatomic particles that are attracted to an orbit around the positively-charged nucleus of an atom. They reside in locations that are associated with energy levels called shells and are further organized into sub-shells and orbitals within each shell.
Electrons Orbit the Nucleus
Electrons are found in specific locations outside of the nucleus. The shell in which an electron resides indicates the general energy level of the electron: those closer to the...
99.3K

You might also read

Related Articles

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

Sort by
Same author

Pb(111) islands adsorbed on epitaxial graphene: a magnetotransport study.

Journal of physics. Condensed matter : an Institute of Physics journal·2025
Same author

Tailored photoactivity of 2D nanosheets synthesized by electron irradiation of metal-organic Ru(II) monolayers.

Nanoscale·2025
Same author

Observation of Floquet states in graphene.

Nature physics·2025
Same author

Evidence of Coulomb liquid phase in few-electron droplets.

Nature·2025
Same author

Ultrasensitive Detection of Chemokines in Clinical Samples with Graphene-Based Field-Effect Transistors.

Advanced materials (Deerfield Beach, Fla.)·2024
Same author

Critical Point Drying of Graphene Field-Effect Transistors Improves Their Electric Transport Characteristics.

Small methods·2023
Same journal

Bridging nanotechnology and mechanobiology.

Nature nanotechnology·2026
Same journal

Coherent 2D/3D van der Waals epitaxy enables single-crystal perovskite heterostructures.

Nature nanotechnology·2026
Same journal

Coherent 2D-3D van der Waals perovskite epitaxial heterostructures.

Nature nanotechnology·2026
Same journal

Ultrafast, reconfigurable all-optical beam steering and spatial light modulation.

Nature nanotechnology·2026
Same journal

A high-energy hydrogen radical initiates efficient electrosynthesis of urea from CO<sub>2</sub> and N<sub>2</sub>.

Nature nanotechnology·2026
Same journal

Machine-intelligent multimodal algebot for intracavitary chemotherapy.

Nature nanotechnology·2026
See all related articles

Related Experiment Video

Updated: Jul 30, 2025

Demonstration of Equal-Intensity Beam Generation by Dielectric Metasurfaces
09:33

Demonstration of Equal-Intensity Beam Generation by Dielectric Metasurfaces

Published on: June 7, 2019

6.3K

Two electrons interacting at a mesoscopic beam splitter.

Niels Ubbelohde1, Lars Freise2, Elina Pavlovska3

  • 1Physikalisch-Technische Bundesanstalt, Braunschweig, Germany. niels.ubbelohde@ptb.de.

Nature Nanotechnology
|May 11, 2023
PubMed
Summary
This summary is machine-generated.

Researchers quantified parametric nonlinearity in electron interactions using coincidence correlations. This breakthrough enhances control over individual particles, paving the way for quantum engineering and metrology applications.

More Related Videos

Spatial Separation of Molecular Conformers and Clusters
10:37

Spatial Separation of Molecular Conformers and Clusters

Published on: January 9, 2014

9.0K
X-ray Beam Induced Current Measurements for Multi-Modal X-ray Microscopy of Solar Cells
10:16

X-ray Beam Induced Current Measurements for Multi-Modal X-ray Microscopy of Solar Cells

Published on: August 20, 2019

13.9K

Related Experiment Videos

Last Updated: Jul 30, 2025

Demonstration of Equal-Intensity Beam Generation by Dielectric Metasurfaces
09:33

Demonstration of Equal-Intensity Beam Generation by Dielectric Metasurfaces

Published on: June 7, 2019

6.3K
Spatial Separation of Molecular Conformers and Clusters
10:37

Spatial Separation of Molecular Conformers and Clusters

Published on: January 9, 2014

9.0K
X-ray Beam Induced Current Measurements for Multi-Modal X-ray Microscopy of Solar Cells
10:16

X-ray Beam Induced Current Measurements for Multi-Modal X-ray Microscopy of Solar Cells

Published on: August 20, 2019

13.9K

Area of Science:

  • Quantum physics
  • Mesoscopic systems
  • Quantum metrology

Background:

  • Controlling individual particle interactions is crucial for quantum engineering and metrology.
  • Nonlinear responses in beam splitters are key to quantum applications but challenging to manage at the particle level.

Purpose of the Study:

  • To probe coincidence correlations between individual ballistic electrons at a mesoscopic constriction.
  • To quantify parametric nonlinearity arising from unscreened Coulomb interactions.
  • To explore interaction-mediated energy exchange using full counting statistics.

Main Methods:

  • Experimental probing of coincidence correlations in a mesoscopic constriction.
  • Utilizing full counting statistics of joint detection.
  • Analytical modeling and numerical simulations of electron interactions.

Main Results:

  • Observed an increase in coincidence counts from 50% to 70% between on-demand sources.
  • Identified a correlation signature consistent with independent tomography of electron emission.
  • Confirmed experimental results align with Coulomb interactions in a quadratic saddle potential.

Conclusions:

  • Unscreened Coulomb interactions significantly influence electron correlations at mesoscopic scales.
  • The demonstrated figure of merit, based on Coulomb repulsion and beam splitter dispersion, is sufficient for advanced quantum applications.
  • The findings enable future developments in single-shot in-flight detection and quantum logic gates.