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

1.5K
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...
1.5K
¹H NMR: Long-Range Coupling01:27

¹H NMR: Long-Range Coupling

2.8K
The coupling interactions of nuclei across four or more bonds are usually weak, with J values less than 1 Hz. While these are usually not observed in spectra, the presence of multiple bonds along the coupling pathway can result in observable long-range coupling.
In alkenes, spin information is communicated via σ–π overlap, as seen in allylic (four-bond) and homoallylic (five-bond) couplings. These coupling interactions are stronger when the σ bond is parallel to the alkene...
2.8K
NMR Spectroscopy: Spin–Spin Coupling01:08

NMR Spectroscopy: Spin–Spin Coupling

3.3K
The spin state of an NMR-active nucleus can have a slight effect on its immediate electronic environment. This effect propagates through the intervening bonds and affects the electronic environments of NMR-active nuclei up to three bonds away; occasionally, even farther. This phenomenon is called spin–spin coupling or J-coupling. Coupling interactions are mutual and result in small changes in the absorption frequencies of both nuclei involved. While nuclei of the same element are involved...
3.3K
Biasing of Metal-Semiconductor Junctions01:27

Biasing of Metal-Semiconductor Junctions

698
Biasing metal-semiconductor junctions involves applying a voltage across the junction. Specifically, the metal is connected to a voltage source, while the semiconductor is grounded. This technique is essential for controlling the direction and magnitude of current flow in electronic devices, including diodes, transistors, and photovoltaic cells.
In Schottky junctions, where the semiconductor is n-type, applying a positive voltage to the metal relative to the semiconductor reduces its Fermi...
698
Charging Conductors By Induction01:15

Charging Conductors By Induction

9.3K
The Earth is a good conductor of electricity, and it is so big that it can be considered an infinite source or sink of charges. It can easily exchange charges with any matter.
Generally, conductors like metals do not allow any excess charge to be present on them. Any excess charge added to metals easily flows away, for example, when a metal is placed on the Earth. This process is called earthing.
However, conductors can be charged by a process called induction. For example, consider charging a...
9.3K
Magnetic Damping01:17

Magnetic Damping

1.2K
Eddy currents can produce significant drag on motion, called magnetic damping. For instance, when a metallic pendulum bob swings between the poles of a strong magnet, significant drag acts on the bob as it enters and leaves the field, quickly damping the motion.
If, however, the bob is a slotted metal plate, the magnet produces a much smaller effect. When a slotted metal plate enters the field, an emf is induced by the change in flux; however, it is less effective because the slots limit the...
1.2K

You might also read

Related Articles

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

Sort by
Same author

Entropy, entanglement, and susceptibility of three qubits near quantum criticality.

Physical review. E·2025
Same author

Gating Single Molecules with Counterions.

ACS nano·2025
Same author

Effects of magnetic anisotropy on three-qubit antiferromagnetic thermal machines.

Physical review. E·2024
Same author

2D Ionic Liquid-Like State of Charged Rare-Earth Clusters on a Metal Surface.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)·2024
Same author

Band Polarization Effect on the Kondo State in a Zigzag Silicene Nanoribbon.

Nanomaterials (Basel, Switzerland)·2022
Same author

Inducing chiral superconductivity on honeycomb lattice systems.

Journal of physics. Condensed matter : an Institute of Physics journal·2022
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: Feb 22, 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

10.4K

Conductance and Kondo Interference beyond Proportional Coupling.

Luis G G V Dias da Silva1, Caio H Lewenkopf2, Edson Vernek3

  • 1Instituto de Física, Universidade de Sáo Paulo, C.P. 66318, 05315-970 Sáo Paulo, Sáo Paulo, Brazil.

Physical Review Letters
|September 27, 2017
PubMed
Summary
This summary is machine-generated.

This study presents a new conductance formula for nanostructured systems, revealing how geometry impacts transport. It demonstrates a robust Kondo effect in quantum dots coupled to tunable cavity modes, matching experimental findings.

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

10.3K
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

16.1K

Related Experiment Videos

Last Updated: Feb 22, 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

10.4K
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

10.3K
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

16.1K

Area of Science:

  • Condensed Matter Physics
  • Quantum Transport
  • Nanoscale Electronics

Background:

  • Transport properties in nanostructured systems are sensitive to the geometry of metallic lead connections.
  • The Meir-Wingreen proportional coupling condition is a standard assumption for theoretical models.

Purpose of the Study:

  • Derive a conductance expression for interacting systems deviating from the Meir-Wingreen condition.
  • Investigate the Kondo effect in a quantum dot coupled to tunable electronic cavity modes.
  • Analyze the impact of non-proportional coupling on transport characteristics.

Main Methods:

  • Development of a theoretical conductance expression for non-proportionally coupled systems.
  • Modeling a quantum dot system coherently coupled to tunable electronic cavity modes.
  • Analysis of the Kondo effect and conductance behavior under varying coupling strengths and cavity mode alignments.

Main Results:

  • A conductance expression is derived for systems not meeting the Meir-Wingreen condition.
  • A well-defined Kondo effect is observed in the quantum dot-cavity system across various coupling strengths.
  • Calculated conductance curves show strong modulations and asymmetry, consistent with experimental data.

Conclusions:

  • The derived conductance expression is applicable to systems with non-standard geometries.
  • The quantum dot-cavity system exhibits robust Kondo correlations despite asymmetric coupling.
  • Lopsided device geometry leads to conductance modulations while preserving Kondo singlet correlations.