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

¹H NMR: Long-Range Coupling01:27

¹H NMR: Long-Range Coupling

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 π orbitals.
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...
Carrier Generation and Recombination01:22

Carrier Generation and Recombination

Carrier generation is the process by which electron-hole pairs (EHPs) are created within the semiconductor. In direct-bandgap semiconductors, such as gallium arsenide (GaAs), this occurs efficiently when energy absorption prompts valence electrons to leap into the conduction band, leaving behind holes.
This process is given by the generation rate G and is efficient due to the conservation of momentum between the valence band maximum and conduction band minimum.
Indirect generation involves an...
Potential Due to a Polarized Object01:29

Potential Due to a Polarized Object

A neutral atom consists of a positively charged nucleus surrounded by a negatively charged electron cloud. When placed in an external electric field, the external electric force pulls the electrons and nucleus apart, opposite to the intrinsic attraction between the nucleus and the electrons. The opposing forces balance each other with a slight shift between the center of masses of the nucleus and the electron cloud, resulting in a polarized atom. On the other hand, a few molecules, like water,...

You might also read

Related Articles

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

Sort by
Same author

General Class of Functionals for Certifying Quantum Incompatibility.

Physical review letters·2026
Same author

Bloch polaritons in arrayed two-level atoms: collective emission and anomalous transport.

Optics express·2025
Same author

Dissipative engineering with strong light-matter coupling for optimized photo-oxidation suppression in organic chromophores.

The Journal of chemical physics·2025
Same author

Non-Markovian quantum exceptional points.

Nature communications·2025
Same author

Electromagnetically induced transparency and quantum enhancement of transmission via dressed bloch photons in an array of three-level Λ-type atoms.

Optics express·2024
Same author

Controlling periodic Fano resonances of quantum acoustic waves with a giant atom coupled to a microwave waveguide.

Optics express·2023

Related Experiment Video

Updated: May 23, 2026

Determination of the Excitation and Coupling Rates Between Light Emitters and Surface Plasmon Polaritons
07:39

Determination of the Excitation and Coupling Rates Between Light Emitters and Surface Plasmon Polaritons

Published on: July 21, 2018

Generating maximum entanglement under asymmetric couplings to surface plasmons.

Guang-Yin Chen1, Che-Ming Li, Yueh-Nan Chen

  • 1Department of Physics and National Center for Theoretical Sciences, National Cheng-Kung University, Tainan City 701, Taiwan.

Optics Letters
|April 20, 2012
PubMed
Summary

Researchers explored entanglement generation between quantum dots and nanoring surface plasmons. Optimal entanglement occurs when coupling strengths have specific ratios, offering practical insights for quantum information engineering.

More Related Videos

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
07:56

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference

Published on: September 5, 2019

Colloidal Synthesis of Nanopatch Antennas for Applications in Plasmonics and Nanophotonics
09:12

Colloidal Synthesis of Nanopatch Antennas for Applications in Plasmonics and Nanophotonics

Published on: May 28, 2016

Related Experiment Videos

Last Updated: May 23, 2026

Determination of the Excitation and Coupling Rates Between Light Emitters and Surface Plasmon Polaritons
07:39

Determination of the Excitation and Coupling Rates Between Light Emitters and Surface Plasmon Polaritons

Published on: July 21, 2018

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
07:56

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference

Published on: September 5, 2019

Colloidal Synthesis of Nanopatch Antennas for Applications in Plasmonics and Nanophotonics
09:12

Colloidal Synthesis of Nanopatch Antennas for Applications in Plasmonics and Nanophotonics

Published on: May 28, 2016

Area of Science:

  • Quantum physics
  • Nanotechnology
  • Quantum information engineering

Background:

  • Generating entangled states is crucial for quantum information technologies.
  • Quantum dots coupled to plasmonic nanostructures offer a promising platform for entanglement generation.

Purpose of the Study:

  • To investigate entanglement generation between two quantum dots coupled to nanoring surface plasmons.
  • To analyze the influence of asymmetric coupling strengths on entanglement dynamics.

Main Methods:

  • Solving the master equation to obtain the dynamics of concurrence (C).
  • Analyzing the effects of incident and scattered fields on entanglement.

Main Results:

  • High entanglement is achievable at specific times through field scatterings.
  • Maximum entanglement is generated when the ratio of coupling strengths (r = g(1)/g(2)) is a ratio of odd numbers.
  • Significant entanglement persists even when the ratio 'r' deviates from optimal values.

Conclusions:

  • Asymmetric coupling strengths in quantum dot-plasmon systems can be controlled to generate high entanglement.
  • The findings provide valuable parameters for experimental realization of robust entanglement in quantum information applications.