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

Diamagnetism01:26

Diamagnetism

3.2K
Materials consisting of paired electrons have zero net magnetic moments. However, when these materials are placed under an external magnetic field, the moments opposite to the field are induced. Such materials are called diamagnets. Diamagnetism is the response of the diamagnets when placed in an external magnetic field.
Diamagnetism was discovered by Anton Brugmans in 1778 when he observed that bismuth gets repelled by magnetic fields, thus theorizing that diamagnets get repelled by magnets....
3.2K
Atomic Nuclei: Nuclear Relaxation Processes01:23

Atomic Nuclei: Nuclear Relaxation Processes

1.3K
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.
1.3K
Magnetic Moment of an Electron01:23

Magnetic Moment of an Electron

3.1K
Electrons revolving around a nucleus are analogous to a circular current carrying loop. This current produces a magnetic dipole moment proportional to the electron's orbital angular momentum. Since the orbital angular momentum is quantized in terms of the reduced Planck's constant, the dipole moment is quantized in the Bohr Magneton. The value of the Bohr magneton is 9.27 x 10-24 Am2. Electrons also have an intrinsic spin angular momentum, and the associated spin magnetic moment is...
3.1K
Induced Electric Dipoles01:28

Induced Electric Dipoles

5.0K
A permanent electric dipole orients itself along an external electric field. This rotation can be quantified by defining the potential energy because the external torque does work in rotating it. Then, the potential energy is minimum at the parallel configuration and maximum at the antiparallel configuration. While the former is a stable equilibrium, the latter is an unstable equilibrium.
Since the absolute value of potential energy holds no physical meaning, its zero value can be chosen as per...
5.0K
Potential Due to a Magnetized Object01:24

Potential Due to a Magnetized Object

850
Magnetic dipoles in magnetic materials are aligned when placed under an external magnetic field. For paramagnets and ferromagnets, dipole alignment occurs in the direction of the magnetic field. However, the dipoles align opposite to the field in the case of diamagnets. This state of magnetic polarization due to the external field is called magnetization. Magnetization is defined as the dipole moment per unit volume. It plays a similar role to polarization in electrostatics.
The vector...
850
Colors and Magnetism03:02

Colors and Magnetism

14.4K
Color in Coordination Complexes
When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals. For many main group atoms and molecules, the absorbed photons are in the ultraviolet range of the electromagnetic spectrum, which cannot be detected by the human eye. For coordination compounds, the energy difference between the d orbitals often allows photons in the visible range to be absorbed and emitted, which is seen as colors by the human...
14.4K

You might also read

Related Articles

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

Sort by
Same author

Inferring Charge-Noise Source Locations from Correlations in Spin Qubits.

Physical review letters·2026
Same author

A biological rhythm in the hypothalamic system links sleep-wake cycles with feeding-fasting cycles.

Scientific reports·2024
Same author

Case of Irregular Arrangement, and the Remedy.

The American journal of dental science·2019
Same author

MeCP2-regulated miRNAs control early human neurogenesis through differential effects on ERK and AKT signaling.

Molecular psychiatry·2017
Same author

Modeling of Fano resonances in the reflectivity of photonic crystal cavities with finite spot size excitation.

Optics express·2014
Same author

Quantum dot dipole orientation and excitation efficiency of micropillar modes.

Optics express·2009

Related Experiment Video

Updated: Mar 13, 2026

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

17.1K

Magnetic control of dipolaritons in quantum dots.

J S Rojas-Arias1, B A Rodríguez, H Vinck-Posada

  • 1Departamento de Física, Universidad Nacional de Colombia-Sede Bogotá, Facultad de Ciencias, Grupo de Óptica e Información Cuántica, Carrera 45 No. 26-85, C.P. 111321, Bogotá, Colombia.

Journal of Physics. Condensed Matter : an Institute of Physics Journal
|October 22, 2016
PubMed
Summary

We propose dipolaritons (a superposition of photons and excitons) in coupled quantum dots. These dipolaritons exhibit unique properties and magnetic field control, differing from quantum well systems.

More Related Videos

Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection
12:57

Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection

Published on: October 13, 2017

9.6K
Silicon Metal-oxide-semiconductor Quantum Dots for Single-electron Pumping
14:58

Silicon Metal-oxide-semiconductor Quantum Dots for Single-electron Pumping

Published on: June 3, 2015

15.5K

Related Experiment Videos

Last Updated: Mar 13, 2026

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

17.1K
Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection
12:57

Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection

Published on: October 13, 2017

9.6K
Silicon Metal-oxide-semiconductor Quantum Dots for Single-electron Pumping
14:58

Silicon Metal-oxide-semiconductor Quantum Dots for Single-electron Pumping

Published on: June 3, 2015

15.5K

Area of Science:

  • Quantum physics
  • Condensed matter physics
  • Optoelectronics

Background:

  • Dipolaritons are quasiparticles formed by photons and excitons in microcavities.
  • Existing research primarily focuses on coupled quantum wells.

Purpose of the Study:

  • To propose and investigate dipolaritons in a system of two coupled quantum dots within a microcavity.
  • To explore the unique properties of quantum dot dipolaritons compared to quantum well systems.
  • To analyze the influence of magnetic fields on these novel quasiparticles.

Main Methods:

  • Theoretical modeling using finite system theory.
  • Analysis of exciton and dipolariton properties under varying magnetic fields.
  • Investigation of optical emission characteristics.

Main Results:

  • Confirmation of dipolariton existence in coupled quantum dot systems.
  • Identification of distinct properties and potential for true dark polariton states in quantum dots.
  • Demonstration of magnetic field as a control parameter for exciton and dipolariton properties.

Conclusions:

  • Dipolaritons in coupled quantum dots present unique characteristics compared to quantum wells.
  • The system offers potential for novel quantum phenomena and device applications.
  • Magnetic fields provide a viable method for tuning the behavior of these quasiparticles.